CN108011465A - One kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure - Google Patents
One kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure Download PDFInfo
- Publication number
- CN108011465A CN108011465A CN201810081558.5A CN201810081558A CN108011465A CN 108011465 A CN108011465 A CN 108011465A CN 201810081558 A CN201810081558 A CN 201810081558A CN 108011465 A CN108011465 A CN 108011465A
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- China
- Prior art keywords
- bearing
- roller
- magnet synchronous
- stir
- sets
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- 238000003756 stirring Methods 0.000 title claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 title claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003754 machining 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
- 238000007634 remodeling Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses one kind to stir the special permasyn morot bearing arrangement of industry, it includes axle stretch end bearing and tail bearing, the axle stretch end bearing includes a set of cylinder roller bearing, two sets of roller thrust bearings, and adjustment spring is equipped between two sets of roller thrust bearings；The tail bearing includes a set of Self-aligning bearing and outer ring anti-rotation member.The axle stretch end bearing and tail bearing collective effect bear rotor weight, agitating paddle weight, unilateral magnetic force, axial unbalanced magnetic pull, stirring liquid to agitating paddle reaction axial force, agitated liquid to the counteractive radial load of agitating paddle, and common guarantee motor is steady, reliably operating.
Description
Technical field
It is particularly a kind of to be used to stir industry permanent magnet synchronous direct the present invention relates to a kind of permanent-magnet synchronous direct drive bearing of motor
Drive motor bearing structure.
Background technology
At present, domestic chemical industry stirring corporate boss will use the structure type of common electric machine+gear reducer, and bearing in reduction gears is adopted
With a pair of of taper roll bearing arrangement form.It is low with overall efficiency, a series of problems, such as energy consumption is high, and maintenance cost is high, especially
It is in whipping process, agitating paddle bears very big moment of flexure, torque-combining effect, bearing in reduction gears is lost rotation essence quickly
Degree, in turn results in bearing wear, and gear wear is accelerated, the gear reducer lost of life；Therefore add user use, safeguard into
This, reduces production efficiency.
In recent years, industry is stirred in chemical industry, the driving structure form using permanent-magnet synchronous direct drive motor+frequency converter is more next
More extensive, it has the advantages that, and overall efficiency is high, it is low to safeguard, overload startup ability is big, but since stirring industry operating mode loads,
Shaft strength harsh conditions, if not doing special designing, motor bearings can be also quickly damaged, and in turn result in motor damage, be caused
User's property loss.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of for stirring industry permanent-magnet synchronous direct drive bearing of motor knot
Structure.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
One kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure, and the bearing arrangement includes axle stretch end bearing and tail
Portion's bearing, the axle stretch end bearing are arranged on shaft extension one end, and the tail bearing is arranged on electronic drive end unit.
Further improve is that the axle stretch end bearing includes a set of cylinder roller bearing, two sets of cylindrical roller thrusts
Bearing, the cylinder roller bearing and roller thrust bearing are set gradually along shaft extension end of motor to electronic drive end unit, institute
State and adjustment spring is equipped between two sets of roller thrust bearings, the opposite spring that adjusts of two sets roller thrust bearings is symmetrically set
Put；The adjustment spring is detachably connected with two sets of roller thrust bearings.The adjustment spring provides bearing pre-fastening, inhales
Receive uneven load shock and vibration.
Further improve is that the tail bearing includes a set of Self-aligning bearing and outer ring anti-rotation structure.
Further improve is that the Self-aligning bearing is spheric roller bearing or CARB annulus roller bearing or self-regulated
Heart ball bearing.
Further improve is that the anti-assembling structure in outer ring is corrugated gasket or sealing ring.
Technical solution using the present invention, a set of cylinder roller bearing bear the radial load suffered by motor, i.e. blade is stirring
The moment of flexure that is produced during mixing, moment of torsion；Two sets of roller thrust bearings bear the axial force suffered by motor, i.e. blade is stirring
During the additional axial force that produces, rotor weight etc.；Adjustment spring adjustment bearing between two sets of roller thrust bearings
Between gap, play the minimum pretightning force of adjustment, absorb the effect of axial vibration, the structure is withstood shocks load.
Tail bearing is acted on by self-regulated heart ball bearing automatic aligning, the structure is born axle stretch end bearing and afterbody
Bearing machining, assembling decentraction, abrasion, noise etc. caused by bearing, specifically, self-regulated heart spherical roller bearing have the rolling of two row
There are a shared spherical raceway in son, outer ring, and inner ring has two raceways, has a certain degree with the vertical axis of bearing, can
Bear the bending because of axis, or the error that axis caused by mismachining tolerance is misaligned with bearing block；Corrugated gasket or sealing ring pass through bullet
Property deformation produce pretightning force, act on bearing outer ring, prevent bearing outer ring from rotating.
One main function of tail bearing is aligning, because there is the load radial load born during stirring in front end, is put by the arm of force
It is big to be applied to axle stretch end bearing and tail bearing, load axial power and mainly born by axle stretch end bearing；Axle stretch end bearing and afterbody
Bearing collective effect bears rotor weight, agitating paddle weight, unilateral magnetic force, axial unbalanced magnetic pull, stirring liquid pair
Agitating paddle reaction axial force, agitated liquid ensure that permasyn morot is gone in stirring to the counteractive radial load of agitating paddle
Under the operating mode of industry harshness, safe and reliable operation, the maintenance cost reduced, the production efficiency improved.
The present invention is by rational force analysis, and stringent bearing life is checked, by optimizing bearing span and bearing knot
Structure, optimizes the force-bearing situation of bearing, makes the stress of front and back bearings more reasonable, bearing life is improved more than 2 times compared with ordinary construction.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is axle stretch end bearing arrangement schematic diagram of the present invention；
Fig. 3 is the tail bearing structure diagram of the embodiment of the present invention one；
Fig. 4 is the tail bearing structure diagram of the embodiment of the present invention two；
Fig. 5 is the tail bearing structure diagram of the embodiment of the present invention three；
Wherein, 1, cylinder roller bearing；2nd, roller thrust bearing；3rd, spring is adjusted, 4, Self-aligning bearing；5th, outer ring anti-rotation
Structure.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood implication of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of relevant Listed Items.
For ease of skilled artisan understands that technical solution of the present invention, makees the present invention program in conjunction with Figure of description
It is described in further detail.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a kind of for stirring industry permanent-magnet synchronous direct drive motor bearing structure,
The bearing arrangement includes axle stretch end bearing and tail bearing, and the axle stretch end bearing is arranged on shaft extension one end, the tail
Portion's bearing is arranged on electronic drive end unit.
The axle stretch end bearing includes a set of 1, two set of roller thrust bearing 2 of cylinder roller bearing, the cylinder rolling
Sub- bearing 1 and roller thrust bearing 2 are set gradually along shaft extension end of motor to electronic drive end unit, two sets of cylindrical rollers
Adjustment spring 3 is equipped between thrust bearing 2, the opposite adjustment spring 3 of two sets of roller thrust bearings 2 is symmetrical arranged；The tune
Whole spring.
The tail bearing includes a set of Self-aligning bearing 4 and outer ring anti-rotation structure 5.
The Self-aligning bearing 4 is spheric roller bearing.
The outer ring anti-rotation structure 5 is corrugated gasket.
Embodiment 2
As shown in Figure 1, Figure 2 and Figure 4, the present invention provides a kind of for stirring industry permanent-magnet synchronous direct drive motor bearing structure,
The bearing arrangement includes axle stretch end bearing and tail bearing, and the axle stretch end bearing is arranged on shaft extension one end, the tail
Portion's bearing is arranged on electronic drive end unit.
The axle stretch end bearing includes a set of 1, two set of roller thrust bearing 2 of cylinder roller bearing, the cylinder rolling
Sub- bearing 1 and roller thrust bearing 2 are set gradually along shaft extension end of motor to electronic drive end unit, two sets of cylindrical rollers
Adjustment spring 3 is equipped between thrust bearing 2, the opposite adjustment spring 3 of two sets of roller thrust bearings 2 is symmetrical arranged；The tune
Whole spring.
The tail bearing includes a set of Self-aligning bearing 4 and outer ring anti-rotation structure 5.
The Self-aligning bearing 4 is CARB annulus roller bearings.
The outer ring anti-rotation structure 5 is sealing ring.
Embodiment 3
As shown in Figure 1, Figure 2 with shown in Fig. 5, the present invention provides one kind and is used to stir industry permanent-magnet synchronous direct drive motor bearing structure,
The bearing arrangement includes axle stretch end bearing and tail bearing, and the axle stretch end bearing is arranged on shaft extension one end, the tail
Portion's bearing is arranged on electronic drive end unit.
The axle stretch end bearing includes a set of 1, two set of roller thrust bearing 2 of cylinder roller bearing, the cylinder rolling
Sub- bearing 1 and roller thrust bearing 2 are set gradually along shaft extension end of motor to electronic drive end unit, two sets of cylindrical rollers
Adjustment spring 3 is equipped between thrust bearing 2, the opposite adjustment spring 3 of two sets of roller thrust bearings 2 is symmetrical arranged；The tune
Whole spring.
The tail bearing includes a set of Self-aligning bearing 4 and outer ring anti-rotation structure 5.
The Self-aligning bearing 4 is self-regulated heart ball bearing.
The outer ring anti-rotation structure 5 is corrugated gasket.
Bearing arrangement in the present invention, has decomposed the stress of motor bearings, compared with traditional structure bearing life improve 2 times with
On.
A set of cylinder roller bearing bears the radial load suffered by motor, i.e., blade produces in whipping process moment of flexure, turn round
Square；Two sets of roller thrust bearings bear the axial force suffered by motor, i.e., the additional axial direction that blade produces in whipping process
Power, rotor weight etc.；The gap between adjustment spring adjustment bearing between two sets of roller thrust bearings, plays adjustment most
Small pretightning force, absorbs the effect of axial vibration, the structure is withstood shocks load.
Tail bearing is acted on by Self-aligning bearing automatic aligning, the structure is born axle stretch end bearing and afterbody axis
Processing, assembling decentraction are held, abrasion, noise etc. caused by bearing, specifically, self-regulated heart spherical roller bearing have the rolling of two row
There are a shared spherical raceway in son, outer ring, and inner ring has two raceways, has a certain degree with the vertical axis of bearing, can
Bear the bending because of axis, or the error that axis caused by mismachining tolerance is misaligned with bearing block；Corrugated gasket or sealing ring pass through bullet
Property deformation produce pretightning force, act on bearing outer ring, prevent bearing outer ring from rotating.
The above, is only the preferred embodiments of the present invention, and not limits the present invention,
Any person skilled in the art is changed or is modified as equivalent variations possibly also with the technology contents of the disclosure above
Equivalent embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example
Any simple modification, equivalent variations and the remodeling made, still falls within the protection domain of technical solution of the present invention.
Claims (5)
1. one kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure, it is characterised in that the bearing arrangement includes
Axle stretch end bearing and tail bearing, the axle stretch end bearing are arranged on shaft extension one end, and the tail bearing is arranged on motor
Afterbody.
2. a kind of according to claim 1 be used to stir industry permanent-magnet synchronous direct drive motor bearing structure, it is characterised in that
The axle stretch end bearing includes a set of cylinder roller bearing（1）, two sets of roller thrust bearings（2）, the cylindrical roller axis
Hold（1）And roller thrust bearing（2）Set gradually along shaft extension end of motor to electronic drive end unit, two sets of cylindrical rollers
Thrust bearing（2）Between be equipped with adjustment spring（3）, two sets of roller thrust bearings（2）Opposite adjustment spring（3）Symmetrically set
Put；The adjustment spring is detachably connected with two sets of roller thrust bearings.
3. according to claim 1 or claim 2 a kind of for stirring industry permanent-magnet synchronous direct drive motor bearing structure, its feature exists
In the tail bearing includes a set of Self-aligning bearing（4）With outer ring anti-rotation structure（5）.
4. a kind of according to claim 3 be used to stir industry permanent-magnet synchronous direct drive motor bearing structure, it is characterised in that
The Self-aligning bearing（4）For spheric roller bearing or CARB annulus roller bearing or self-regulated heart ball bearing.
5. a kind of according to claim 3 be used to stir industry permanent-magnet synchronous direct drive motor bearing structure, it is characterised in that
The outer ring anti-rotation structure (5) is corrugated gasket or sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081558.5A CN108011465A (en) | 2018-01-29 | 2018-01-29 | One kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081558.5A CN108011465A (en) | 2018-01-29 | 2018-01-29 | One kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108011465A true CN108011465A (en) | 2018-05-08 |
Family
ID=62066499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081558.5A Withdrawn CN108011465A (en) | 2018-01-29 | 2018-01-29 | One kind is used to stir industry permanent-magnet synchronous direct drive motor bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108011465A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247849A (en) * | 2006-03-17 | 2007-09-27 | Ntn Corp | Cylindrical roller bearing with aligning ring for agitator |
| CN201071882Y (en) * | 2007-08-22 | 2008-06-11 | 重庆齿轮箱有限责任公司 | Bearing mechanism of gear shaft in high power angle gear transmission |
| CN101383536A (en) * | 2008-10-24 | 2009-03-11 | 大连电机集团有限公司 | Permanent magnet direct driving motor with large axial directional load |
| JP2011202735A (en) * | 2010-03-25 | 2011-10-13 | Ntn Corp | Roller bearing, electric motor equipped with the same, and generator |
| CN103546008A (en) * | 2012-11-19 | 2014-01-29 | 北京明正维元电机技术有限公司 | Alternating-current permanent-magnet synchronous motor |
| CN204497930U (en) * | 2015-02-04 | 2015-07-22 | 大连创为电机有限公司 | Variable-frequency motor is driven on the asynchronous top of directly driving of oil-well rig |
| CN205618560U (en) * | 2016-04-26 | 2016-10-05 | 长沙矿冶研究院有限责任公司 | Large -scale vertical spiral stirring mill's bearing transmission system |
| CN206366423U (en) * | 2016-12-20 | 2017-08-01 | 辽宁五寰工程技术有限公司 | A kind of vertical grinder permanent magnet direct-drive mechanism |
| CN207968156U (en) * | 2018-01-29 | 2018-10-12 | 南京迪瓦机械制造有限公司 | One kind is for stirring industry permanent-magnet synchronous direct drive motor bearing structure |
-
2018
- 2018-01-29 CN CN201810081558.5A patent/CN108011465A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247849A (en) * | 2006-03-17 | 2007-09-27 | Ntn Corp | Cylindrical roller bearing with aligning ring for agitator |
| CN201071882Y (en) * | 2007-08-22 | 2008-06-11 | 重庆齿轮箱有限责任公司 | Bearing mechanism of gear shaft in high power angle gear transmission |
| CN101383536A (en) * | 2008-10-24 | 2009-03-11 | 大连电机集团有限公司 | Permanent magnet direct driving motor with large axial directional load |
| JP2011202735A (en) * | 2010-03-25 | 2011-10-13 | Ntn Corp | Roller bearing, electric motor equipped with the same, and generator |
| CN103546008A (en) * | 2012-11-19 | 2014-01-29 | 北京明正维元电机技术有限公司 | Alternating-current permanent-magnet synchronous motor |
| CN204497930U (en) * | 2015-02-04 | 2015-07-22 | 大连创为电机有限公司 | Variable-frequency motor is driven on the asynchronous top of directly driving of oil-well rig |
| CN205618560U (en) * | 2016-04-26 | 2016-10-05 | 长沙矿冶研究院有限责任公司 | Large -scale vertical spiral stirring mill's bearing transmission system |
| CN206366423U (en) * | 2016-12-20 | 2017-08-01 | 辽宁五寰工程技术有限公司 | A kind of vertical grinder permanent magnet direct-drive mechanism |
| CN207968156U (en) * | 2018-01-29 | 2018-10-12 | 南京迪瓦机械制造有限公司 | One kind is for stirring industry permanent-magnet synchronous direct drive motor bearing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180508 |
|
| WW01 | Invention patent application withdrawn after publication |