CN201953907U - Suspended damper for use in high-speed rotating machine - Google Patents
Suspended damper for use in high-speed rotating machine Download PDFInfo
- Publication number
- CN201953907U CN201953907U CN2011200392226U CN201120039222U CN201953907U CN 201953907 U CN201953907 U CN 201953907U CN 2011200392226 U CN2011200392226 U CN 2011200392226U CN 201120039222 U CN201120039222 U CN 201120039222U CN 201953907 U CN201953907 U CN 201953907U
- Authority
- CN
- China
- Prior art keywords
- oil film
- fixing frame
- axle journal
- ring
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Support Of The Bearing (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a suspended damper for use in a high-speed rotating machine, which is characterized in that: the upper part of an oil film ring fixing rack is fixedly connected with a damper fixing plate, and the lower part of the oil film ring fixing rack is connected with the lower part of a sealed limit ring through an oil seal plate; the lower part of a ball bearing fixing rack is connected with the upper part of an oil film journal through combined pendants, and a clearance is arranged between the bottom surface of the oil film journal and the oil seal plate; an oil film ring is positioned at the outer side of the lower part of the oil film journal, and a clearance is arranged between the oil film ring and the oil film journal; a lubricant is injected between the oil film ring fixing rack and the sealed limit ring, and upper ball bearings are arranged in an inverted V-shaped hole of a first pendant in each combined pendant and a V-shaped hole of the ball bearing fixing rack; and lower ball bearings are arranged in a V-shaped hole of a second pendant and an inverted V-shaped hole of the oil film journal. In the suspended damper with the structure, a flywheel rotor can stably pass through a low-order critical rotational speed, low-frequency precession is eliminated, and a lower natural frequency and a larger viscous damping performance of an oil film are integrated.
Description
Technical field
The utility model belongs to the mechanical parts technical field, specifically, relates to a kind of suspending type damper that is used for high-speed rotating machine.
Background technique
In recent years, flywheel energy storage etc. develop towards high speed, high-power, high power to weight ratio direction, in order to reduce the frictional loss of high speed rotating fly wheel system, improve energy conversion efficiency, and the low-loss bearing technology is by extensive concern.Permanent-magnet bearing is one of bearing of using always, and it can realize non-contact, does not have friction, has also played axial unloading effect simultaneously, reduces the friction power loss of lower bearing, has improved the efficient of flywheel energy storage system.But, cause the first natural frequency of flywheel energy storage system lower because the radial rigidity of axial permanent magnetic bearing is less than normal.Damper at present commonly used can't guarantee that flywheel rotor can pass through low order critical speed of rotation reposefully, eliminates the low frequency precession, realizes that low natural frequency and bigger oil film viscous damping performance are in one.
Summary of the invention
Technical problem: technical problem to be solved in the utility model is, a kind of suspending type damper that is used for high-speed rotating machine is provided, guarantee that flywheel rotor can pass through low order critical speed of rotation reposefully, eliminate the low frequency precession, realizes that lower natural frequency and bigger oil film viscous damping performance are in one.
Technological scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is: the suspending type damper that is used for high-speed rotating machine of the present utility model, comprise oil film ring fixing frame, the oil film ring, the oil film axle journal, the ball fixing frame, the damper fixed plate, the sealing limited post, the soft magnetism ring, the stator of Permanent-magnet bearing, oil sealing plate and Combined hanger, described oil film ring fixing frame is an annular solid, the fixedly connected damper fixed plate in the top of oil film ring fixing frame, being provided with the sealing limited post in the cavity of oil film ring fixing frame, fixedlys connected with the bottom of sealing limited post by the oil sealing plate in the bottom of oil film ring fixing frame; The top of described ball fixing frame is fixedly connected on the below of damper fixed plate, and the bottom of ball fixing frame is connected by at least three Combined hangers with the top of oil film axle journal; The bottom of ball fixing frame is provided with ∨ type hole, and the top of oil film axle journal is provided with ∧ type hole; The bottom of oil film axle journal is provided with the stator and the soft magnetism ring of Permanent-magnet bearing, and the stator of Permanent-magnet bearing is fixed on the below of soft magnetism ring, and is gapped between the bottom surface of oil film axle journal and the oil sealing plate; The oil film ring is fixedly connected on the bottom of oil film ring fixing frame, and the oil film ring is positioned at the bottom outside of oil film axle journal, and is gapped between the outer wall of the inwall of oil film ring and oil film axle journal; Be marked with lubricant oil between described oil film ring fixing frame and the sealing limited post, the liquid level of lubricant oil is positioned at the top face of oil film ring; Described each Combined hanger comprises ball, following ball, first suspension member that is fixed together and second suspension member, first suspension member is positioned at the top of ball fixing frame bottom, and the bottom surface of first suspension member is provided with the corresponding ∧ type hole, ∨ type hole with the ball fixing frame, be provided with ball in the ∧ type hole of first suspension member and the ball fixing frame ∨ type hole, the bottom of described second suspension member is provided with the corresponding ∨ type hole, ∧ type hole with the oil film axle journal, is provided with down ball in the ∧ type hole of the ∨ type hole of second suspension member and oil film axle journal.
Beneficial effect: compared with prior art, the beneficial effects of the utility model are: 1. the suspending type damper of the technical program can guarantee that flywheel rotor is reposefully by low order critical speed of rotation, eliminate the low frequency precession, realizes that lower natural frequency and bigger oil film viscous damping performance are in one.In the technical program, the ball fixing frame is connected by Combined hanger with the oil film axle journal.Specifically, by last ball bearing, pass through ball bearing down between second suspension member and the oil film axle journal between first suspension member in each Combined hanger and the ball fixing frame.Friction between first suspension member and the ball fixing frame is rolling friction, and surface friction drag is less.Friction between second suspension member and the oil film axle journal is rolling friction, and surface friction drag is less.Like this, because the surface friction drag between ball fixing frame and oil film axle journal and the Combined hanger is less, damper has less lateral stiffness.That is to say that suspending type damper of the present utility model has less natural frequency, be mainly used in the low frequency precession or the low-frequency vibration that suppress fly wheel system.The oil film axle journal of the technical program is connected on the ball fixing frame by Combined hanger, and oil clearance is less, therefore can produce bigger viscous damping.
2. guarantee damper simultaneously when the swing operation, damper Permanent-magnet bearing stator keeps level.When swinging a little,, pass through ball bearing down between second suspension member and the oil film axle journal, so the displacement vector of Combined hanger each point is the same because pass through last ball bearing between first suspension member and the ball fixing frame.Like this, the displacement vector of each point also all is the same on the oil film axle journal.Therefore, on the whole, in each moment of swing, the height of oil film axle journal all is consistent, thereby the stator that is embedded in the Permanent-magnet bearing in the oil film axle journal is consistent apart from the height of the rotor of Permanent-magnet bearing, and therefore, damper Permanent-magnet bearing stator keeps level.
3. have good process industrial art performance and usability.Each Combined hanger in the technical program is all by first suspension member, second suspension member with roll and form.Each constituent elements simple in structure, processing is convenient, and they are assembled into Combined hanger, only need can satisfy the requirement of use according to general mounting process, need not special processing and mounting process.
Description of drawings
Fig. 1 is that suspending type damper of the present utility model is installed in the structure sectional view on the flywheel body.
Fig. 2 is the erection drawing of first suspension member and second suspension member in Combined hanger in the utility model.
Fig. 3 is the plan view of the ball fixing frame in the utility model.
Fig. 4 is that the A of Fig. 3 is to sectional view.
Fig. 5 is that the second all component groups in the utility model is dressed up a unitarily formed structural representation.
Have among the figure: oil film ring fixing frame 1, oil film ring 2, oil film axle journal 3, down ball 4, second suspension member 5, limited post 6, ball fixing frame 7, go up ball 8, first suspension member 9, damper fixed plate 10, sealing limited post 11, teflon protecting jacket 12, lubricant oil 13, soft magnetism ring 14, Permanent-magnet bearing stator 15, oil sealing plate 16, go up axle 17, the rotor 18 of Permanent-magnet bearing, flywheel body 19.
Embodiment
As shown in Figures 1 to 4, a kind of suspending type damper that is used for high-speed rotating machine of the present utility model comprises stator 15, oil sealing plate 16 and the Combined hanger of oil film ring fixing frame 1, oil film ring 2, oil film axle journal 3, ball fixing frame 7, damper fixed plate 10, sealing limited post 11, soft magnetism ring 14, Permanent-magnet bearing.Oil film ring fixing frame 1 is an annular solid.Oil film ring fixing frame 1 is fixed on the frame.Stator 15, oil sealing plate 16 and the Combined hanger of oil film ring 2, oil film axle journal 3, ball fixing frame 7, damper fixed plate 10, sealing limited post 11, soft magnetism ring 14, Permanent-magnet bearing all are positioned at oil film ring fixing frame 1.The fixedly connected damper fixed plate 10 in the top of oil film ring fixing frame 1.Be provided with sealing limited post 11 in the cavity of oil film ring fixing frame 1.Sealing limited post 11 is a hollow cylinder.Fixedly connected with the bottom of sealing limited post 11 by oil sealing plate 16 in the bottom of oil film ring fixing frame 1.Oil film ring fixing frame 1, oil sealing plate 16 and sealing limited post 11 have just been formed a lubricant oil container.Ball fixing frame 7 is arranged in oil film ring fixing frame 1.The top of ball fixing frame 7 is fixedly connected on the below of damper fixed plate 10, and the bottom of ball fixing frame 7 is connected by at least three Combined hangers with the top of oil film axle journal 3.The bottom of ball fixing frame 7 is provided with ∨ type hole.The top of oil film axle journal 3 is provided with ∧ type hole.The bottom of oil film axle journal 3 is provided with the stator 15 and the soft magnetism ring 14 of Permanent-magnet bearing, and the stator 15 of Permanent-magnet bearing is fixed on the below of soft magnetism ring 14.Gapped between the bottom surface of oil film axle journal 3 and the oil sealing plate 16.Oil film ring 2 is fixedly connected on the bottom of oil film ring fixing frame 1, and oil film ring 2 is positioned at the bottom outside of oil film axle journal 3, and is gapped between the outer wall of the inwall of oil film ring 2 and oil film axle journal 3.Be marked with lubricant oil 13 between oil film ring fixing frame 1 and the sealing limited post 11, the liquid level of lubricant oil 13 is positioned at the top face of oil film ring 2.Like this, between the outer wall of the inwall of oil film ring 2 and oil film axle journal 3, just form annular oil film.Each Combined hanger all comprises ball 8, following ball 4, first suspension member 9 and second suspension member 5.Last ball 8 and following ball 4 can adopt the roller of rolling bearing.So both guarantee last ball 8 and following ball 4 dimensional accuracies, guaranteed the hardness requirement of last ball 8 and following ball 4 again.First suspension member 9 is fixedlyed connected with second suspension member 5.First suspension member 9 is positioned at the top of ball fixing frame 7 bottoms, and the bottom surface of first suspension member 9 is provided with the corresponding ∧ type hole, ∨ type hole with ball fixing frame 7 bottoms, is provided with ball 8 in the ∨ type hole of the ∧ type hole of first suspension member 9 and ball fixing frame 7.The bottom of second suspension member 5 is provided with the corresponding ∨ type hole, ∧ type hole with oil film axle journal 3 tops, is provided with down ball 4 in the ∧ type hole of the ∨ type hole of second suspension member 5 and oil film axle journal 3.
Suspending type damper in the technical program, ball fixing frame 7 and oil film axle journal 3 are connected by Combined hanger.Specifically, by last ball 8 supportings, pass through ball 4 supportings down between second suspension member 5 and the oil film axle journal 3 between first suspension member 9 in each Combined hanger and the ball fixing frame 7.Friction between first suspension member 9 and the ball fixing frame 7 is rolling friction, and surface friction drag is less.Friction between second suspension member 5 and the oil film axle journal 3 is rolling friction, and surface friction drag is less.Like this, because the surface friction drag between ball fixing frame 7 and oil film axle journal 3 and the Combined hanger is less, damper has less lateral stiffness.That is to say that suspending type damper of the present utility model has less natural frequency, be mainly used in the low-frequency vibration that suppresses fly wheel system.In addition, in the technical program, oil film ring fixing frame 1, oil sealing plate 16 and sealing limited post 11 have been formed a lubricant oil container.In this lubricant oil container, be marked with lubricant oil 13.Since gapped between the bottom surface of oil film axle journal 3 and the oil sealing plate 16, also gapped between oil film axle journal 3 and the oil film ring 2, so, just formed oil film between oil film ring 2 and the oil film axle journal 3.Oil clearance is less, therefore can produce bigger viscous damping.Oil film axle journal 3 is connected on the ball fixing frame 7 by Combined hanger.When swinging a little,, pass through ball 4 supportings down between second suspension member 5 and the oil film axle journal 3, so the displacement vector of Combined hanger each point is the same because support by last ball 8 between first suspension member 9 and the ball fixing frame 7.Like this, the displacement vector of each point also all is the same on the oil film axle journal 3.When flywheel body 19 during with rotor 18 high speed rotating of Permanent-magnet bearing, vibrate, driven the swing of oil film axle journal 3 and Combined hanger by the effect of Permanent-magnet bearing, oil film axle journal 3 can squeeze film axle journals 3 and oil film ring 2 between oil film, thereby consumed energy.On the whole, in each moment of swing, the height of oil film axle journal 3 all is consistent, thereby the stator 15 that is embedded in the Permanent-magnet bearing in the oil film axle journal 3 is consistent apart from the height of the rotor 18 of Permanent-magnet bearing, therefore, damper Permanent-magnet bearing stator keeps level.
Sealing limited post 11 in the technical program is except being used to form a lubricant oil container; can also interact with the teflon guard ring 12 that going up of flywheel body 19 installed on axle 17 steps; prevent fly wheel system when high speed rotating, damage vitals when producing excessive radial displacement owing to a variety of causes.In the suspending type damper of this structure, oil film ring 2 does not have and oil film ring fixing frame 1 is made of one structure, be in experiment and production process, change the radius value of oil film by the internal diameter size that changes oil film ring 2, study under various oil film radiuses the damping of suspending type damper.
Further, described suspending type damper also comprises limited post 6, and the bottom surface of limited post 6 is connected the end face of oil film axle journal 3.After suspending type damper assembling is finished, in order to prevent that last ball 8 rolls out from ∨ type hole with following ball 4 in the process of using with carrying suspending type damper, limited post 6 is set at the end face of oil film axle journal 3.Limited post 6 can reduce the distance that oil film axle journal 3 moves up, and leaves ∨ type hole to avoid ball 8 and following ball 4, guarantees the proper functioning of suspending type damper.
Further, the ∨ type hole of described ball fixing frame 7 is three, and along the bottom that circumferentially is evenly arranged in ball fixing frame 7; The ∧ type hole of described oil film axle journal 3 is three, and along the top that circumferentially is evenly arranged in oil film axle journal 3; Described Combined hanger is three.As shown in Figure 5, three second suspension members 5 in the Combined hanger also can be by a part processing, and the second promptly all suspension members 5 can be assembled into a complete annular element.Equally, three first suspension members 9 in the Combined hanger can be by a part processing.At three locating points of circumferential arrangement, on the one hand can satisfy user demand, accurate positioning on the other hand, can guarantee the conformity of height.So, the bottom of ball fixing frame 7 circumferentially evenly arrange three ∨ type holes, circumferentially evenly arrange three ∧ type holes on the top of oil film axle journal 3.Combined hanger is three.Each Combined hanger matches with the ∨ type hole of a ball fixing frame 7 and the ∧ type hole of an oil film axle journal 3 respectively.
Further,, consider that oil film axle journal 3 will satisfy certain intensity requirements, can adopt stainless steel material to make, for example adopt 1Cr18Ni9Ti to make for easy for installation and prevent that leakage field, oil film axle journal 3 from should use exhausted magnetic material.
Claims (4)
1. suspending type damper that is used for high-speed rotating machine, it is characterized in that, comprise oil film ring fixing frame (1), oil film ring (2), oil film axle journal (3), ball fixing frame (7), damper fixed plate (10), sealing limited ring (11), soft magnetism ring (14), the stator of Permanent-magnet bearing (15), oil sealing plate (16) and Combined hanger, described oil film ring fixing frame (1) is an annular solid, the fixedly connected damper fixed plate in the top of oil film ring fixing frame (1) (10), being provided with sealing limited post (11) in the cavity of oil film ring fixing frame (1), fixedlys connected with the bottom of sealing limited post (11) by oil sealing plate (16) in the bottom of oil film ring fixing frame (1); The top of described ball fixing frame (7) is fixedly connected on the below of damper fixed plate (10), and the bottom of ball fixing frame (7) is connected by at least three Combined hangers with the top of oil film axle journal (3); The bottom of ball fixing frame (7) is provided with ∨ type hole, and the top of oil film axle journal (3) is provided with ∧ type hole; The bottom of oil film axle journal (3) is provided with the stator (15) and the soft magnetism ring (14) of Permanent-magnet bearing, and the stator of Permanent-magnet bearing (15) is fixed on the below of soft magnetism ring (14), and is gapped between the bottom surface of oil film axle journal (3) and the oil sealing plate (16); Oil film ring (2) is fixedly connected on the bottom of oil film ring fixing frame (1), and oil film ring (2) is positioned at the bottom outside of oil film axle journal (3), and is gapped between the outer wall of the inwall of oil film ring (2) and oil film axle journal (3); Be marked with lubricant oil (13) between described oil film ring fixing frame (1) and the sealing limited post (11), the liquid level of lubricant oil (13) is positioned at the top face of oil film ring (2); Described each Combined hanger comprises ball (8), following ball (4), first suspension member (9) that is fixed together and second suspension member (5), first suspension member (9) is positioned at the top of ball fixing frame (7) bottom, and the bottom surface of first suspension member (9) is provided with the corresponding ∧ type hole, ∨ type hole with ball fixing frame (7), be provided with ball (8) in the ∧ type hole of first suspension member (9) and ball fixing frame (7) the ∨ type hole, the bottom of described second suspension member (5) is provided with the corresponding ∨ type hole, ∧ type hole with oil film axle journal (3), is provided with down ball (4) in the ∧ type hole of the ∨ type hole of second suspension member (5) and oil film axle journal (3).
2. the suspending type damper that is used for high-speed rotating machine according to claim 1 is characterized in that, also comprises limited post (6), and the bottom surface of limited post (6) is connected the end face of oil film axle journal (3).
3. the suspending type damper that is used for high-speed rotating machine according to claim 1 is characterized in that, the ∨ type hole of described ball fixing frame (7) is three, and along the bottom that circumferentially is evenly arranged in ball fixing frame (7); The ∧ type hole of described oil film axle journal (3) is three, and along the top that circumferentially is evenly arranged in oil film axle journal (3); Described Combined hanger is three.
4. the suspending type damper that is used for high-speed rotating machine according to claim 1 is characterized in that described oil film axle journal (3) is made by stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200392226U CN201953907U (en) | 2011-02-16 | 2011-02-16 | Suspended damper for use in high-speed rotating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200392226U CN201953907U (en) | 2011-02-16 | 2011-02-16 | Suspended damper for use in high-speed rotating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953907U true CN201953907U (en) | 2011-08-31 |
Family
ID=44498017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200392226U Expired - Lifetime CN201953907U (en) | 2011-02-16 | 2011-02-16 | Suspended damper for use in high-speed rotating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953907U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080704A (en) * | 2011-02-16 | 2011-06-01 | 东南大学 | Suspension type damper used for high speed rotating machine |
| CN104534018A (en) * | 2014-12-18 | 2015-04-22 | 东南大学 | Suspension type multilayer oil film damper with rolling spherical hinge connection |
| CN106838003A (en) * | 2017-01-18 | 2017-06-13 | 东南大学 | A kind of Permanent-magnet bearing with pendulum-type film damper |
-
2011
- 2011-02-16 CN CN2011200392226U patent/CN201953907U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080704A (en) * | 2011-02-16 | 2011-06-01 | 东南大学 | Suspension type damper used for high speed rotating machine |
| CN102080704B (en) * | 2011-02-16 | 2012-05-23 | 东南大学 | Suspension type damper used for high speed rotating machine |
| CN104534018A (en) * | 2014-12-18 | 2015-04-22 | 东南大学 | Suspension type multilayer oil film damper with rolling spherical hinge connection |
| CN106838003A (en) * | 2017-01-18 | 2017-06-13 | 东南大学 | A kind of Permanent-magnet bearing with pendulum-type film damper |
| CN106838003B (en) * | 2017-01-18 | 2018-12-28 | 东南大学 | A kind of Permanent-magnet bearing with pendulum-type film damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103939523B (en) | Halbach array magnetic suspension bearing and rotor support system | |
| CN203836075U (en) | Halbach array magnetic bearing and rotor supporting system | |
| CN101571160A (en) | Rotating ring distortion magnetic suspension bearing and rotating shaft thereof | |
| CN103225669B (en) | With the Permanent-magnet bearing squeeze film damper of elastic ring | |
| CN107289004A (en) | A kind of vehicle-mounted flying wheel battery alternating current-direct current five degree of freedom conisphere face hybrid magnetic bearing | |
| CN102927124A (en) | Multi-layer bubbled foil radial dynamic pressure gas bearing | |
| CN201953907U (en) | Suspended damper for use in high-speed rotating machine | |
| CN104455143A (en) | Magnetic damper with floating magnetic ring | |
| CN201956795U (en) | Flywheel energy storage device | |
| CN104455200B (en) | The squeeze film damper of band floating magnet ring | |
| CN103398013A (en) | Turbine molecular pump | |
| CN110453322A (en) | A kind of separate type permanent magnetic suspending shaft bearing structure for Yarn-spinning spindle | |
| CN201187530Y (en) | Non-balance magnetic bearing | |
| CN106979226A (en) | A kind of combined magnetic suspension bearing | |
| CN103453017B (en) | Pantograph structure molded line active and static pressure air-bearing | |
| CN202297934U (en) | Permanent magnet bearing for reducing vibration of spinning spindle | |
| CN102080704B (en) | Suspension type damper used for high speed rotating machine | |
| CN204344798U (en) | The squeeze film damper of the floating magnet ring of band | |
| CN101881300A (en) | Embedded electromagnetic-elastic foil gas mixing bearing | |
| CN206972762U (en) | The oval filmatic bearing structure of Laying head | |
| CN201763834U (en) | High-speed rotating shafting vibration elimination device of cantilever shaft structure | |
| CN102122860A (en) | Flywheel energy storage device | |
| CN106594057B (en) | A kind of small-sized foil gas hydrodynamic bearing | |
| CN202790097U (en) | Self-aligning bearing | |
| CN201636216U (en) | Control moment gyro inner frame component supporting bush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20120523 |