CN105897039B - The ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support - Google Patents
The ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support Download PDFInfo
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- CN105897039B CN105897039B CN201610480063.0A CN201610480063A CN105897039B CN 105897039 B CN105897039 B CN 105897039B CN 201610480063 A CN201610480063 A CN 201610480063A CN 105897039 B CN105897039 B CN 105897039B
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- 238000002604 ultrasonography Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000002783 friction material Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000000919 ceramic Substances 0.000 abstract description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 230000036316 preload Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/22—Methods relating to manufacturing, e.g. assembling, calibration
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support, it is related to a kind of ultrasound electric machine and the stator and rotor pre-tension method of the motor, to solve the structure of existing ultrasound electric machine, all to there are firmly beforehand meanses complex, and it can not reach the pretension of degree of precision using these firmly beforehand meanses, and the support of rotor axis of electric uses deep groove ball bearing, the problem of rotating accuracy of armature spindle is low, it includes upper lid, base, armature spindle, rotor, stator, top bearing cover, lower bearing end cap, spring spool and two angular contact ball bearings；Upper lid and bottom seat is detachably connected, and an angular contact ball bearing is respectively provided with two coaxial through-holes, and the back-to-back arrangement of two angular contact ball bearings, armature spindle is arranged on two angular contact ball bearings；Rotor is affixed with rotor flange, and one layer of ring-shaped piezo ceramic is equipped with the end face adjacent with base of stator.The present invention is used as ultrasound electric machine, is particularly suitable for high rotating accuracy application scenario.
Description
Technical field
The present invention relates to the stator of a kind of ultrasound electric machine and the motor and rotor pre-tension method, belong to piezoelectric ultrasonic motor neck
Domain.
Background technology
Ultrasound electric machine is the inverse piezoelectric effect using piezoelectric, stator is produced mechanical oscillation in supersonic range, passes through
Rubbing action between stator and rotor, the macroscopical one direction that the vibration of stator is converted into rotor rotates that (or straight line is transported
It is dynamic).It has broken the concept of conventional motors, with high accuracy, flexible structure, capacitive load without unique property such as magnetic interference
Energy.But existing ultrasound electric machine structure limits the performance of these characteristics, therefore develop high rotating accuracy, more compact structure
Ultrasound electric machine tool is of great significance.
Publication No. CN102223104A, publication date is on October 19th, 2011, and patent name is " nut adjusts precompression
Rotary type travelling wave ultrasonic motor " patent of invention pre-load nut and locking spiral shell are threadedly installed in output shaft lower end
Mother, by controlling direction displacement of the pre-load nut in the center line of rotating shaft along stator to control the malleation between stator and rotor
Power.The regulative mode of this normal pressure is very simple, but during repeated disassembled and assembled locking nut and pre-load nut, the longevity of nut
Life and the precision of ultrasound electric machine can all be affected；Secondly, dismounting is carried out to locking nut and pre-load nut repeatedly to also result in
Nut fatigue failure, the pretightning force of motor can still decline.Publication No. CN101123405A, publication date is 02 month 2008 13
Day, patent name is the patent of invention of " rotary type ultraphonic motor and its implementation ", utilizes holding screw, butterfly spring, support
Disk and bearing constitute the precompression application system of motor, are turned by adjusting the deflection of butterfly spring at two ends to adjust to be applied to
Precompression on son；Separately there is Publication No.：CN104868782A, publication date is：06 month 2015 02 day, Patent No.：It is " a kind of
The patent of invention of innovative travelling-wave type rotary ultrasonic motor ", is placed with some between the end cap and body of ultrasound electric machine described in the patent
Annular gasket, the precompression provided between stator base and body by disc spring compresses armature spindle rotating disk, by adjusting ring washer
Quantity disc spring can be made to be maintained in the range of zero stiffness, make precompression stable, further to improve the output of ultrasound electric machine
Energy.The patent adjusts precompression, but the height and thickness of slab of butterfly spring in the mill by adjusting the deflection of butterfly spring
Even if as there is little error, its characteristic also has larger error, and the precision of ultrasound electric machine can also be affected.Publication No.
CN101707445A, publication date be on November 12nd, 2009, patent name for " thin board type dual traveling wave rotary ultrasonic motor and its
The rubber spring of the patent of invention of control method " is pressed in endless metal thin slice and pedestal through ring-shaped piezo ceramic piece, institute
Rubber spring isolation annular piezoelectric ceramic piece and bearing, fixed stator are stated, while the precompression between stator, rotor is provided, but rubber
Glue spring is not pure elastomer, and its mechanical characteristic is more complicated, non-refractory, oiliness；Its elasticity can not relatively accurately be calculated special
Property, therefore, influence motor rotating accuracy.
It is complex all to there are firmly beforehand meanses in these structures, and can not reach degree of precision using these firmly beforehand meanses
Pretension.Traditional support scheme is the deep groove ball bearing differed using two external diameters, and it is larger that pretightning force is applied to external diameter
On bearing, the less bearing of size not pretension, in free state, even if the deep groove ball bearing of the large-size of pretension, also not
Clearance can be eliminated, the bearing clearance of the reduced size of pretension does not exist always, so the revolution of the armature spindle of this bearings
Precision is low.
The content of the invention
The present invention is that all to there are firmly beforehand meanses complex and pre- using these to solve the structure of existing ultrasound electric machine
Tight mode can not reach that the pretension of degree of precision, and the support of rotor axis of electric use deep groove ball bearing, armature spindle
The problem of rotating accuracy is low, and then the ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support are provided.
The present invention adopts the technical scheme that to solve the above problems：A kind of ultrasonic electric of angular contact ball bearing supporting construction
Machine, it mainly includes upper lid, base, armature spindle, rotor, stator, spring spool and two angular contact ball bearings；
Upper lid and bottom seat is detachably connected, and the coaxial through-hole of same inner diameter is machined with upper lid and bottom seat；Two coaxial logical
One angular contact ball bearing is respectively installed, the back-to-back arrangement of two angular contact ball bearings, armature spindle is arranged on two corner connections in hole
Touch on ball bearing, rotor flange is installed on the armature spindle between two angular contact ball bearings；
Rotor and stator arrangement are between rotor flange and one of angular contact ball bearing, and rotor is consolidated with rotor flange
Connect, stator is arranged on base, and a spring housing is set with the armature spindle between one of angular contact ball bearing and rotor
One layer of annular friction material with stator contact, the stator end face adjacent with base are equipped with cylinder, the end face of the wheel rim of rotor
On be equipped with one layer of ring-shaped piezo ceramic.
A kind of stator of the ultrasound electric machine of angular contact ball bearing supporting construction and rotor pre-tension method, first, by upper lid and
Base is fastened by seam and alignment pin, fastens upper lid and bottom seat with screw, and loosen lower bearing end cap and angular contact ball bearing；
Then, the top bearing cover on the thickness of the Upper gasket in adjustment between lid and top bearing cover, fastening on lid, screws upper bearing (metal)
Hexagon-headed bolt on end cap, when screwing, the top bearing cover on upper lid has the trend moved down, passes through top bearing cover
Lower end flange end face compresses the outer ring of angular contact ball bearing, and outer ring stress passes to inner ring, and inner ring is by inner support pad and turns
Sub- flange, transmits pressure to rotor and stator contact interface, realizes the preliminary pretension of stator and rotor, in pretension, with survey
Torque spanner measures the locked rotor torque of armature spindle, you can complete the pretension of stator and rotor, pretension stator, rotor, while also may be used
With the angular contact ball bearing of pretension upper end；Finally, then the thickness of the lower gasket between bottom end cover and base is adjusted, screws lower end tight
Determine bolt, promote the lower bearing end cap on base, the upper end flange end face of lower bearing end cap compresses the outer ring of angular contact ball bearing,
Stress is passed to inner ring by outer ring by rolling element, and inner ring holds out against spring spool, and spring spool compresses rotor hub, due to spring
The deformation rigidity of sleeve is much smaller than the deformation rigidity of rotor web, and spring spool is first deformed, and elastic compression force is produced, to lower end
Angular contact ball bearing provides pretightning force, while the pretightning force is delivered to rotor flange by rotor hub, due to rotor hub and
The rigidity of rotor flange is both greater than the rigidity of spring spool, and pretightning force is delivered to inner support pad through rotor flange, then is delivered to
The inner ring of the angular contact ball bearing of upper end, inner ring is delivered to outer ring by rolling element, is delivered to top bearing cover, is delivered to lid
On, the pretension of the angular contact ball bearing of lower end is realized, while making the further pretension of angular contact ball bearing of upper end, final realize is determined
The accurate pretension of son and rotor.
The present invention has the following effects that compared with prior art：
First, the short seam of lid and bottom seat adds alignment pin to install positioning to the ultrasound electric machine of structure of the present invention thereon so that bearing
The installation accuracy of bore is improved；
2nd, two coaxial through-holes (bearing saddle bore) of armature spindle are two through holes of diameter identical, can be in fit on lid
After base, process at one time, processing facility, bearing saddle bore axiality is high；
3rd, using a pair of models and size identical angular contact ball bearing, back-to-back arrangement supports armature spindle, and two
Bearing can so make bearing clearance adjustable, clearance is kept into minimum respectively all by pretension, improve the revolution essence of armature spindle
Degree.
4th, the solid inner ring in spring spool top of the angular contact ball bearing on base, with lower bearing end cap pretension outer ring, when under
During this angular contact ball bearing of bearing (ball) cover pretension, give bearing to apply pretightning force by camber of spring, stator and rotor are not influenceed
Pretightning force.
5th, the underlay between the Upper gasket and base and lower bearing end cap between the structure top bearing cover and upper lid
Piece adjusts the pretension of bearing, and easy to adjust, the parallel compression bearing outer ring of cover flange, bearing pre-tightened precision is high.
Brief description of the drawings
Fig. 1 is the structural representation of prior art ultrasound electric machine；
Fig. 2 is overall structure diagram of the invention.
Embodiment
Embodiment one：Illustrate with reference to Fig. 2, a kind of ultrasonic electric of angular contact ball bearing support of present embodiment
Machine, it includes upper lid 5, base 17, armature spindle 8, rotor 14, stator 2, spring spool 4 and two angular contact ball bearings 7；
Upper lid 5 and base 17 are detachably connected, and the coaxial through-hole of same inner diameter is machined with upper lid 5 and base 17；Two
One angular contact ball bearing 7 is respectively installed, the back-to-back arrangement of two angular contact ball bearings 7, armature spindle 8 is arranged in coaxial through-hole
On two angular contact ball bearings 7, rotor flange 8-1 is installed on the armature spindle 8 between two angular contact ball bearings 7；
Rotor 14 and stator 2 are arranged between rotor flange 20 and one of angular contact ball bearing 7, rotor 14 and rotor
Flange 8-1 is affixed, and stator 2 is arranged on base 17, on the armature spindle 8 between one of angular contact ball bearing 7 and rotor 14
It is set with the one layer of annular friction material for being equipped with and being contacted with stator 2 on a spring spool 4, the end face of the wheel rim of rotor 14
15, one layer of ring-shaped piezo ceramic 16 is equipped with the end face adjacent with base 17 of stator 2.
The annular friction material 15 of present embodiment is PTFE-based composites.Spring spool 4 is arranged on rotor
Wheel hub 14-1 lower section.Need exist for, it is emphasized that when designing the rigidity of spring spool 4, Finite element arithmetic rotor need to be passed through
Web 14-2 rigidity, makes the rigidity of spring spool 4 be much smaller than rotor web 14-2 rigidity.The base 17 of present embodiment with
Lower bearing end cap 1 is connected by bolt 13.
Embodiment two：Illustrate with reference to Fig. 2, the spring spool 4 of present embodiment is spiral compression spring, dish-shaped bullet
Spring or Elastic Circular borehole jack,.It is so designed that, during from spiral compression spring, the spring filament diameter 1mm of spring, central diameter 9mm spring,
Its rigidity is 13.5N/mm.So that the rigidity of spring spool 4 is much smaller than rotor web 14-2 rigidity.Other and specific embodiment party
Formula one is identical.
Embodiment three：Illustrate with reference to Fig. 2, a kind of ultrasound electric machine of angular contact ball bearing support of present embodiment
Also include top bearing cover 10 and lower bearing end cap 1；Top bearing cover 10 is arranged on upper lid 5, another angular contact ball bearing 7
Outer shroud contacted with the flange end face of top bearing cover 10, between the inner ring and rotor flange 8-1 of another angular contact ball bearing 7
Inner support pad 9 is disposed with, lower bearing end cap 1 is arranged on base 17.It is so designed that, it is possible to achieve the high revolution of ultrasound electric machine
Precision and accurate pretension, meet the design requirements and the actual needs.It is other identical with embodiment one or two.
Embodiment four：Illustrate with reference to Fig. 2, a kind of ultrasound electric machine of angular contact ball bearing support of present embodiment
Also include Upper gasket 6 and lower gasket 18；Upper gasket 6, lower bearing end cap 1 and bottom are disposed between top bearing cover 10 and upper lid 5
Lower gasket 18 is disposed between seat 17.It is so designed that, it is possible to achieve the high rotating accuracy and accurate pretension of ultrasound electric machine, satisfaction are set
Meter is required and is actually needed.It is other identical with embodiment three.
Embodiment five：Illustrate with reference to Fig. 2, the upper lid 5 and base 17 of present embodiment coordinate docking using seam,
Upper lid 5 and base 17 are machined with the conical through-hole of insertion, conical through-hole and are fitted with conical dowel pin 3.It is arranged such, it is this to beat
Enter the assembling mode of conical dowel pin, make the upper lid 5 and the mating surface of base 17 of the ultrasound electric machine seamless closely sealed, improve installation
Precision；The time processing of coaxial through-hole (bearing saddle bore) reduces the scale error for processing bearing saddle bore respectively, improves ultrasound
The rotating accuracy of motor.Upper lid 5 is changed to coordinate by short seam with base 17, then squeeze into conical dowel pin 3, it is to avoid fixture
Cross positioning and seam is long the problem of interfere with conical dowel pin 3, the quantity at least two of conical dowel pin 3.It is other
It is identical with embodiment one, two or five.
Embodiment six：Illustrate with reference to Fig. 2, a kind of ultrasound electric machine of angular contact ball bearing support of present embodiment
Stator and rotor pre-tension method, first, upper lid 5 and base 17 are fastened by seam and conical dowel pin 3, fastened with screw
Upper lid 5 and base 17, and loosen lower bearing end cap 1 and angular contact ball bearing 7；Then, in adjustment lid 5 and top bearing cover 10 it
Between Upper gasket 6 thickness, the top bearing cover 10 on fastening on lid 5 screws the hexagon-headed bolt 11 on top bearing cover 10,
When screwing, the top bearing cover 10 on upper lid 5 has the trend moved down, passes through the lower end flange end face pressure of top bearing cover 10
The outer ring of tight angular contact ball bearing 7, outer ring stress passes to inner ring, inner ring by inner support pad 9 and rotor flange 8-1,
Pressure transmission realizes the preliminary pretension of stator 2 and rotor 14, in pretension, uses measuring moment to rotor 14 and the contact interface of stator 2
Spanner measures the locked rotor torque of armature spindle 8, you can the pretension of completion stator 2 and rotor 14, pretension stator 2, rotor 14, while
Can be with the angular contact ball bearing 7 of pretension upper end；Finally, then the thickness of the lower gasket 18 between bottom end cover 1 and base 17 is adjusted, rotation
Tight lower end tight fixed bolt 19, promotes the lower bearing end cap 1 on base 17, and the upper end flange end face of lower bearing end cap 1 compresses corner connection
The outer ring of ball bearing 7 is touched, stress is passed to inner ring by outer ring by rolling element, and inner ring holds out against spring spool 4, and spring spool 4 is pressed
Tight rotor hub 14-1, because the deformation rigidity of spring spool 4 is much smaller than rotor web 14-2 deformation rigidity, spring spool 4
First deform, produce elastic compression force, the angular contact ball bearing 7 to lower end provides pretightning force, while the pretightning force passes through rotor wheel
Hub 14-1 is delivered to rotor flange 8-1, because rotor hub 14-1 and rotor flange 8-1 rigidity are both greater than spring spool 4
Rigidity, pretightning force is delivered to inner support pad 9 through rotor flange 8-1, then is delivered to the inner ring of the angular contact ball bearing 7 of upper end,
Inner ring is delivered to outer ring by rolling element, is delivered to top bearing cover 10, is delivered on lid 5, realizes the angular contact ball of lower end
The pretension of bearing 7, while make the further pretension of angular contact ball bearing 7 of upper end, finally realizes the accurate pre- of stator 2 and rotor 14
Tightly.
Need exist for, it is emphasized that when designing the rigidity of spring spool 4, Finite element arithmetic rotor web 14-2 need to be passed through
Rigidity, make spring spool 4 rigidity be much smaller than rotor web 14-2 rigidity.The quiet of armature spindle 8 is measured with measuring spanner for force moment
State torque, can meet different torques in real debugging process, be to meet design requirement.
Claims (6)
1. a kind of ultrasound electric machine of angular contact ball bearing support, it is characterised in that：It includes upper lid (5), base (17), armature spindle
(8), rotor (14), stator (2), spring spool (4) and two angular contact ball bearings (7)；
Upper lid (5) and base (17) are detachably connected, and the coaxial through-hole of same inner diameter is machined with upper lid (5) and base (17)；
One angular contact ball bearing (7), two back-to-back arrangements of angular contact ball bearing (7), rotor are respectively installed in two coaxial through-holes
Axle (8) is arranged on two angular contact ball bearings (7), is installed on the armature spindle (8) between two angular contact ball bearings (7)
There is rotor flange (8-1)；
Rotor (14) and stator (2) are arranged between rotor flange (20) and one of angular contact ball bearing (7), rotor (14)
Affixed with rotor flange (8-1), stator (2) is arranged on base (17), one of angular contact ball bearing (7) and rotor (14)
Between armature spindle (8) on be set with a spring spool (4), the end face of the wheel rim of rotor (14) be equipped with stator (2)
One layer of ring piezoelectric pottery is equipped with one layer of annular friction material (15) of contact, stator (2) end face adjacent with base (17)
Porcelain (16).
2. a kind of ultrasound electric machine of angular contact ball bearing support according to claim 1, it is characterised in that：The spring housing
Cylinder (4) is spiral compression spring, disk spring or Elastic Circular borehole jack.
3. a kind of ultrasound electric machine of angular contact ball bearing support according to claim 1 or 2, it is characterised in that：It is also wrapped
Include top bearing cover (10) and lower bearing end cap (1)；Top bearing cover (10) is arranged on upper lid (5), another angular contact ball
The outer shroud of bearing (7) is contacted with the flange end face of top bearing cover (10), the inner ring and rotor of another angular contact ball bearing (7)
Inner support pad (9) is disposed between flange (8-1), lower bearing end cap (1) is arranged on base (17).
4. a kind of ultrasound electric machine of angular contact ball bearing support according to claim 3, it is characterised in that：It also includes upper
Pad (6) and lower gasket (18)；Upper gasket (6), lower bearing end cap (1) are disposed between top bearing cover (10) and upper lid (5)
Lower gasket (18) is disposed between base (17).
5. a kind of ultrasound electric machine of angular contact ball bearing support according to claim 1,2 or 4, it is characterised in that：Upper lid
(5) seam is used to coordinate docking with base (17), upper lid (5) and base (17) are machined with the conical through-hole of insertion, conical through-hole
Inside it is fitted with conical dowel pin (3).
6. a kind of stator and rotor pre-tension method of the ultrasound electric machine of angular contact ball bearing support, it is characterised in that：First, will be upper
Cover (5) and base (17) to fasten by seam and conical dowel pin (3), lid (5) and base (17) are fastened with screw, and loosen
Lower bearing end cap (1) and angular contact ball bearing (7)；Then, the Upper gasket covered in adjustment between (5) and top bearing cover (10)
(6) top bearing cover (10) covered on thickness, fastening on (5), screws the hexagon-headed bolt (11) on top bearing cover (10),
When screwing, the top bearing cover (10) on upper lid (5) has the trend moved down, passes through top bearing cover (10) lower end flange
End face compresses the outer ring of angular contact ball bearing (7), and outer ring stress passes to inner ring, and inner ring passes through inner support pad (9) and rotor
Flange (8-1), transmits pressure to rotor (14) and stator (2) contact interface, realizes the preliminary pre- of stator (2) and rotor (14)
Tightly, in pretension, with measuring spanner for force moment measure armature spindle (8) locked rotor torque, you can complete stator (2) and rotor (14) it is pre-
Tightly, pretension stator (2), rotor (14), at the same can also pretension upper end angular contact ball bearing (7)；Finally, then bottom end cover is adjusted
(1) thickness of the lower gasket (18) between base (17), screws lower end tight fixed bolt (19), promotes the lower axle on base (17)
Socket end lid (1), the upper end flange end face of lower bearing end cap (1) compresses the outer ring of angular contact ball bearing (7), and outer ring passes through rolling element
Stress is passed into inner ring, inner ring holds out against spring spool (4), and spring spool (4) compresses rotor hub (14-1), due to spring housing
The deformation rigidity of cylinder (4) is much smaller than the deformation rigidity of rotor web (14-2), and spring spool (4) is first deformed, and produces elastic compression
Power, the angular contact ball bearing (7) to lower end provides pretightning force, while the pretightning force is delivered to rotor by rotor hub (14-1)
Flange (8-1), because the rigidity of rotor hub (14-1) and rotor flange (8-1) is both greater than the rigidity of spring spool (4), pretension
Power is delivered to inner support pad (9) through rotor flange (8-1), then is delivered to the inner ring of the angular contact ball bearing (7) of upper end, inner ring
Outer ring is delivered to by rolling element, top bearing cover (10) is delivered to, is delivered on lid (5), realizes the angular contact ball of lower end
The pretension of bearing (7), while making the further pretension of angular contact ball bearing (7) of upper end, finally realizes stator (2) and rotor (14)
Accurate pretension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480063.0A CN105897039B (en) | 2016-06-27 | 2016-06-27 | The ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480063.0A CN105897039B (en) | 2016-06-27 | 2016-06-27 | The ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support |
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| Publication Number | Publication Date |
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| CN105897039A CN105897039A (en) | 2016-08-24 |
| CN105897039B true CN105897039B (en) | 2017-10-03 |
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| CN201610480063.0A Active CN105897039B (en) | 2016-06-27 | 2016-06-27 | The ultrasound electric machine and stator and rotor pre-tension method of a kind of angular contact ball bearing support |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106374775B (en) * | 2016-09-26 | 2018-05-18 | 宁波大学 | A kind of travelling wave supersonic motor containing flexible shaft |
| CN111173843B (en) * | 2018-11-09 | 2021-04-27 | 约翰迪尔（天津）有限公司 | Loading method, loading equipment and mounting method for pre-tightening force of rolling bearing |
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|---|---|---|---|---|
| CN101262184A (en) * | 2008-04-29 | 2008-09-10 | 哈尔滨工业大学 | Vertical bending layer energy converter round disk stator and ultrasonic electromotor using this stator |
| US8531085B2 (en) * | 2009-05-26 | 2013-09-10 | Nikon Corporation | Vibration actuator and electric device |
| CN104506075A (en) * | 2014-10-16 | 2015-04-08 | 南京航空航天大学 | Constant precompression ultrasonic motor capable of bearing axial force |
| CN105207520A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Rotating type traveling wave ultrasonic motor and stator and rotor pre-tightening method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6305077B2 (en) * | 2013-12-16 | 2018-04-04 | キヤノン株式会社 | Vibration wave motor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262184A (en) * | 2008-04-29 | 2008-09-10 | 哈尔滨工业大学 | Vertical bending layer energy converter round disk stator and ultrasonic electromotor using this stator |
| US8531085B2 (en) * | 2009-05-26 | 2013-09-10 | Nikon Corporation | Vibration actuator and electric device |
| CN104506075A (en) * | 2014-10-16 | 2015-04-08 | 南京航空航天大学 | Constant precompression ultrasonic motor capable of bearing axial force |
| CN105207520A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Rotating type traveling wave ultrasonic motor and stator and rotor pre-tightening method thereof |
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