CN103066761B - A kind of axial thrust balancing devices and apply its high-speed electric expreess locomotive - Google Patents
A kind of axial thrust balancing devices and apply its high-speed electric expreess locomotive Download PDFInfo
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- CN103066761B CN103066761B CN201110320949.6A CN201110320949A CN103066761B CN 103066761 B CN103066761 B CN 103066761B CN 201110320949 A CN201110320949 A CN 201110320949A CN 103066761 B CN103066761 B CN 103066761B
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Abstract
The invention provides a kind of axial thrust balancing devices and using its high-speed electric expreess locomotive, the axial thrust balancing devices：Including control module, electromagnet and sensor, described sensor is used to measure by force information, and gives described control module by stress information transfer, by described control module controls the size of current of described electromagnet to control the power of electromagnet.In use, sensor detects the axial thrust situation of main shaft in real time, control module adjustment magnet spool electric current is so as to control the power of electromagnet, and the main shaft axial thrust that electromagnetic force equilibrium impeller is produced makes the uniform force on motor bearings and reduces the stress of bearing.Therefore, compared with prior art, of the invention, it makes the uniform force on motor bearings, reduces the vibration of motor, makes high-speed electric expreess locomotive stable, while also improving the service life of high-speed electric expreess locomotive bearing.
Description
Technical field
The invention belongs to the technical field of motor, more particularly to a kind of axial thrust balancing devices and the high speed electricity using it
Machine.
Background technology
Blower speed is higher, and traditional air blower is typically using motor and the step-up gear being attached thereto driving.For
The efficiency of air blower is improved, energy loss is reduced, motor direct-connected formula air blower starts to be used.Motor direct-connected formula air blower is used
High-speed electric expreess locomotive is directly connected to impeller, that eliminates the systems such as step-up gear, shaft coupling, and this mode improves efficiency, lifting
The processing performance and reliability of operation of product.But, because impeller is connected directly between on the main shaft of high-speed electric expreess locomotive, impeller
Electric machine main shaft generation can be changed with the thrust of axial direction, and axial thrust with the change of wind speed during work, for powerful
Blower fan, axial thrust is acted on the bearing of high-speed electric expreess locomotive up to 5000-6000N, the axial thrust of change by electric machine main shaft,
Operation to high-speed electric expreess locomotive brings destabilizing factor, the vibration of expanded motor system, while can also reduce high-speed electric expreess locomotive bearing
Service life.
The content of the invention
It is an object of the invention to provide a kind of axial thrust balancing devices, it can overcome drawbacks described above, make on motor bearings
Uniform force, reduce motor vibration.
Another object of the present invention is to provide a kind of high-speed electric expreess locomotive, its shaft strength is uniform, and vibration is small, stable,
Also improve the service life of high-speed electric expreess locomotive bearing.
To achieve the above object, the present invention uses following technical scheme：
A kind of axial thrust balancing devices, it includes control module, electromagnet and sensor, and described sensor is used to measure
Described control module is given by force information, and by stress information transfer, described electromagnet is controlled by described control module
Size of current controls the power of electromagnet.
Preferably, above-mentioned control module, it includes the controller, difference engine and power amplifier being sequentially connected.
Preferably, above-mentioned power amplifier is two, and is arranged in parallel.
A kind of high-speed electric expreess locomotive, it includes main shaft, housing unit, stator, rotor and bearing assembly, described rotor and stator
It is set on described main shaft, described bearing assembly is located between described housing unit and main shaft, wherein：It is also further wrapped
Above-mentioned axial thrust balancing devices is included, described sensor is located at the non-output end of described main shaft, and described electromagnet is set
In in described housing unit, the described main shaft of described sensor measurement by force information, it is right by described control module
The power of described electromagnet is controlled, and trying hard to keep on described bearing assembly is kept steady fixed.
Preferably, above-mentioned high-speed electric expreess locomotive, it further comprises seal assembly, and described housing unit includes outer
Shell, left electric motor end cap and right electric motor end cap, described left and right electric motor end cap are respectively arranged on the left and right sides of described shell, and with institute
The shell stated is connected；Described bearing assembly includes left bearing and right bearing, and described left bearing is located at described left motor side
Between lid and described main shaft, described right bearing is between described right electric motor end cap and described main shaft；Described sealing group
Part is located between described left electric motor end cap and main shaft, and described seal assembly is located at the right side of described left bearing, is made described
Seal assembly, left electric motor end cap, right bearing, the gap of rotor and stator be vacuum space.
Preferably, above-mentioned electromagnet is two, and first electromagnet is on described left electric motor end cap inwall；Second
Individual electromagnet is on the inwall of described right electric motor end cap, and two described electromagnet are all located in vacuum space.
Preferably, above-mentioned bearing assembly further comprises right bearing end cap, and described right bearing end cap is located at institute
The right side for the right bearing stated, is connected with described right electric motor end cap；Described electromagnet is interior located at described right bearing end cap
On wall.
Preferably, between above-mentioned right electric motor end cap and described main shaft, seal assembly, described seal assembly position are additionally provided with
In the left side of described right bearing, make between described right bearing end cap and right bearing, be formed with vacuum space, described electromagnet
On the inwall of described right bearing end cap.
Preferably, above-mentioned bearing assembly further comprises right bearing end cap, and described high-speed electric expreess locomotive is also further
Include regulation bearing and adjustment seat, described regulation bearing holder (housing, cover) is located on described main shaft, and described adjustment seat is set in institute
On the regulation bearing stated, and be fastened in described right bearing end cap, described sensor be located at described adjustment seat with it is described
Right bearing end cap between；Two described electromagnet, one of them is on the inwall of described right electric motor end cap, and another sets
In on the inwall of described right bearing end cap.
Preferably, between described right electric motor end cap and described main shaft, seal assembly, described seal assembly position are additionally provided with
In the left side of described right bearing.
After adopting the above technical scheme, the present invention mainly has the advantages that：
1st, sensor detects the axial thrust situation of main shaft in real time, and control module adjustment magnet spool electric current is so as to control
The power of electromagnet processed, the main shaft axial thrust that electromagnetic force equilibrium impeller is produced, makes the uniform force on motor bearings and reduces axle
The stress held；
2nd, using single stator and double-rotor pattern, stator be iron-free cored structure, rotor be located at stator both sides, make motor bearings by
Power is uniform, reduces the vibration of motor, the operation of high-speed electric expreess locomotive is more stablized；
3rd, effectively improve the service life of bearing, it is ensured that the stability of high-speed electric expreess locomotive operation, improve the service life of motor,
Reduce the maintenance cost for the blower fan being connected with motor.
4th, regulation bearing and adjustment seat are set between sensor and axle, makes the responsive to axial force of axle in adjustment seat, is adjusted
Seat is connected with sensor again, improves the life-span of sensor.
Brief description of the 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 example IV 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 the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
With reference to shown in Fig. 1, the invention provides a kind of axial thrust balancing devices 1, it includes control module 11, sensor 12
And electromagnet 13, wherein：
Control module 11, it includes the controller 111, difference engine 112 and power amplifier 113 being sequentially connected.
Sensor 12 is used for the information for measuring main shaft axial force, and transmits this information to the controller of control module 11
111, controller 111 is received after signal, is compared with reference signal, then is passed by difference engine 112 and power amplifier 113
Electromagnet 13 is defeated by, so as to control the size of current of electromagnet 13, further the power of control electromagnet 13, makes axial force balance.
In the present embodiment, power amplifier 113 is two, and is arranged in parallel.
In the use of the present invention, sensor 12 detects the axial thrust situation of main shaft, the adjustment electromagnetism of control module 11 in real time
The coil current of iron 13 is so as to control the power of electromagnet 13, and the main shaft axial thrust that electromagnetic force equilibrium impeller is produced makes motor shaft
The uniform force held and the stress for reducing bearing.
Embodiment one
With reference to shown in Fig. 2, the invention also discloses a kind of high-speed electric expreess locomotive, it includes main shaft 2, housing unit 3, stator 4, turned
Son 5, bearing assembly 6 and seal assembly, wherein：
Housing unit 3 includes shell 31, left electric motor end cap 32 and right electric motor end cap 33, and left and right electric motor end cap 32,33 is distinguished
It is connected located at the left and right sides of shell 31, and with shell 31；
Stator 4 is iron-free cored structure, is configured to plate-like, it is set on main shaft 2, and it is located at the centre position of main shaft 2；
Rotor 5 is provided with two, and it is configured to plate-like, and is set on main shaft 2, and two rotors 5 are respectively arranged on stator 4
Both sides；
Bearing assembly 6 includes left bearing 61 and right bearing 62, and left bearing 61 is located between left electric motor end cap 31 and main shaft 2, right
Bearing 62 is located between right electric motor end cap 32 and main shaft 2；
Seal assembly 71, between left electric motor end cap 31 and main shaft 2, and seal assembly 71 is located at the right side of left bearing 61,
The gap for making seal assembly 71, left electric motor end cap 31, right bearing 62, rotor 5 and stator 4 is vacuum space.
Sensor 12 is located at the non-output end of main shaft 2；
Electromagnet 13 is two, and first electromagnet 131 is on the left inwall of electric motor end cap 31；Second electromagnet 132
On the inwall of right electric motor end cap 32, two described electromagnet are all located in vacuum space.
In use, impeller assembly A is connected directly between on main shaft 2, the axial thrust of main shaft 2 is detected in real time by sensor 12
Situation, the coil current of the adjustment electromagnet 13 of control module 11 is so as to control the power of electromagnet 13, electromagnetic force equilibrium impeller assembly A
The main shaft axial thrust of generation, makes the uniform force on motor bearings component 6 and reduces the stress of bearing assembly 6.In addition, vacuum
The setting in space, reduces resistance during work.
Embodiment two：
With reference to shown in Fig. 3, compared with embodiment one, its difference is：
Bearing assembly 6 further comprises right bearing end cap 63, and right bearing end cap 63 is located at the right side of right bearing 62, with
Right electric motor end cap 32 is connected；
Electromagnet 13 is one, and it is on the inwall of right bearing end cap 63.When toward outer lead, it is ensured that vacuum space
Sealing.
Embodiment three：
With reference to shown in Fig. 4, compared with embodiment two, its difference is：
Between right electric motor end cap 32 and main shaft 2, a seal assembly 72 is additionally provided with, the seal assembly 72 is located at right bearing 62
Left side, makes between right bearing end cap 63 and right bearing 62, is formed with vacuum space, and the setting of seal assembly 72 has been fully ensured that true
The vacuum of absolutely empty, which reduces working resistance, preferably ensures being smoothed out for work.
Example IV：
With reference to shown in Fig. 5, compared with embodiment three, its difference is：
It further comprises adjusting part 8, and described adjusting part 8 includes regulation bearing 81 and adjustment seat 82, adjusted
Bearings 81 are set on main shaft 2, and adjustment seat 82 is set on regulation bearing 81, and is fastened in right bearing end cap 63.
Sensor 12 is located between adjustment seat 82 and right bearing end cap 63；
Two electromagnet 131,132, one of electromagnet 131 is on the inwall of right electric motor end cap 32, another electricity
Magnet 132 is on the inwall of right bearing end cap 63.And the two electromagnet 131,132 are installed in outside vacuum space.
In use, the setting of adjusting part 8, makes the axial force of main shaft 2 in transmission, by adjusting bearing 81 and adjustment seat
82 be transferred to up to sensor 12, can be effectively protected sensor 12, improve the life-span of sensor 12.
Embodiment five：
With reference to shown in Fig. 6, compared with example IV, its difference is；
It is not provided with seal assembly 71,72, i.e., in the present embodiment, and high-speed electric expreess locomotive of the present invention is not vacuumized.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (2)
1. a kind of high-speed electric expreess locomotive, it includes main shaft, housing unit, stator, rotor and bearing assembly, described rotor and stator sleeve
It is located on described main shaft, described bearing assembly is located between described housing unit and main shaft, it is characterised in that：Including control
Module, electromagnet and sensor, described sensor are used for being given by force information, and by stress information transfer for measurement motor main shaft
Described control module, by described control module controls the size of current of described electromagnet to control the power of electromagnet, makes
Trying hard to keep on described bearing assembly keeps steady fixed；Described electromagnet is in described housing unit；Described bearing assembly
Including left bearing and right bearing, described left bearing is between described housing unit and described main shaft, described right bearing
Between described housing unit and described main shaft；
Described housing unit includes shell, left electric motor end cap and right electric motor end cap, and described left and right electric motor end cap is respectively arranged on
The left and right sides of described shell, and be connected with described shell；Described bearing assembly further comprises right bearing end cap,
Described right bearing end cap is located at the right side of described right bearing, is connected with described right electric motor end cap；
Described high-speed electric expreess locomotive further comprises regulation bearing and adjustment seat, and described regulation bearing holder (housing, cover) is located at described master
On axle, described adjustment seat is set on described regulation bearing, and is fastened in described right bearing end cap, described sensing
Device is located between described adjustment seat and described right bearing end cap；The electromagnet includes the first electromagnet and the second electromagnet,
First electromagnet is on the inwall of described right electric motor end cap, and the second electromagnet is located at the inwall of described right bearing end cap
On.
2. high-speed electric expreess locomotive as claimed in claim 1, it is characterised in that：It further comprises seal assembly, and described is close
Sealing assembly is located between described left electric motor end cap and main shaft, and described seal assembly is located at the right side of described left bearing, makes
Described seal assembly, left electric motor end cap, right bearing, the gap of rotor and stator are vacuum space.
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 |
Applications Claiming Priority (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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| CN103066761A CN103066761A (en) | 2013-04-24 |
| CN103066761B true CN103066761B (en) | 2017-08-01 |
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| CN201110320949.6A Active 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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Families Citing this family (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 |
| CN104579030B (en) * | 2015-01-27 | 2017-01-18 | 大连冠力电机科技有限公司 | Control method for adjusting axial force of permanent magnet disc-type motor |
| 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 |
| 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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| CN101013831B (en) * | 2006-02-02 | 2011-03-23 | 日本电产株式会社 | Motor |
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| CN1638236A (en) * | 2003-12-24 | 2005-07-13 | 松下电器产业株式会社 | Brushless motor |
| CN201197126Y (en) * | 2008-04-07 | 2009-02-18 | 王誉燕 | Electromagnetic suspension apparatus of vertical axis pin joint rotating mechanism |
| CN101936338A (en) * | 2009-06-25 | 2011-01-05 | 吴小平 | Micro magnetic pole permanent magnetic suspension bearing |
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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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