CN203051616U - Hybrid bearing supporting vibration damper for tapered shaft - Google Patents
Hybrid bearing supporting vibration damper for tapered shaft Download PDFInfo
- Publication number
- CN203051616U CN203051616U CN 201320091400 CN201320091400U CN203051616U CN 203051616 U CN203051616 U CN 203051616U CN 201320091400 CN201320091400 CN 201320091400 CN 201320091400 U CN201320091400 U CN 201320091400U CN 203051616 U CN203051616 U CN 203051616U
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- vibration damper
- bearing
- oil
- end cap
- hole
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Abstract
The utility model discloses a hybrid bearing supporting vibration damper for a tapered shaft, which relates to a supporting vibration damper, and aims to solve the problems that a rotor system losses dynamic stability because of severe vibration and self-excited vibration caused by an oil film when a conventional high-speed rotor supported in an oil film bearing passes through a critical rotating speed area or is in operation. The tapered shaft provided by the utility model penetrates through a shaft hole in a machine seat; a rectangular groove is formed in an inner taper hole of a bearing bush; an annular groove is formed in the outer wall of the bearing bush; a through hole is formed between the rectangular groove and the annular groove; the bearing bush is sleeved at the taper end of the tapered shaft; an oil supply sleeve and an outer ring of the damper are sleeved at the outer end of the bearing bush in turn from inside to outside; a metal rubber ring is arranged between the oil supply sleeve and the outer ring of the damper; a first end cover and a second end cover are respectively arranged at the left end and the right end of the machine seat; and an oil nozzle penetrates through the first end cover and the oil supply sleeve in turn from outside to inside. The hybrid bearing supporting vibration damper is applicable to supporting vibration damping of a hybrid bearing.
Description
Technical field
The utility model relates to a kind of supporting vibration damper, is specifically related to a kind of dynamic and hydrostatic bearing supporting vibration damper for cone axis.
Background technique
The circular cone hybrid sliding bearing combines the advantage of hydraulic bearing and hydrostatic bearing, can bear simultaneously and radially reach thrust load, have characteristics such as start steadily, axial clearance is adjusted easily, friction power loss is less during high speed, the application in high-speed rotating machine is more and more extensive.Yet the existing high speed rotor that is bearing in the filmatic bearing; owing to be subjected to the influence of factors such as unbalance mass, or external interference; violent vibration appears in regular meeting by critical speed of rotation district or operation the time; because the characteristic of oil film also can produce " self-excited vibration ", thereby make rotor-support-foundation system forfeiture kinetic stability.
The model utility content
The purpose of this utility model is in order to solve the existing high speed rotor that is bearing in the filmatic bearing; owing to be subjected to the influence of factors such as unbalance mass, or external interference; violent vibration appears in regular meeting by critical speed of rotation district or operation the time; because the characteristic of oil film also can produce " self-excited vibration "; thereby make the problem of rotor-support-foundation system forfeiture kinetic stability, and then a kind of dynamic and hydrostatic bearing supporting vibration damper for cone axis is provided.
The technical solution of the utility model is: a kind of dynamic and hydrostatic bearing supporting vibration damper for cone axis comprises support, the vibration damper outer shroud, the metal-rubber ring, oil supplying sleeve, bearing shell, oil nozzle, first end cap and second end cap, cone axis is located in the axis hole of support, the internal taper hole of bearing shell is provided with rectangular recess, the outer wall of bearing shell is provided with annular groove, be provided with through hole between described rectangular recess and the annular groove, bearing shell is sleeved on the conical end of cone axis, oil supplying sleeve and vibration damper outer shroud are sleeved on the outer end of bearing shell from the inside to the outside successively, and be provided with the metal-rubber ring between oil supplying sleeve and the vibration damper outer shroud, first end cap and second end cap are separately positioned on the two ends, the left and right sides of support, oil nozzle is located on second end cap and the oil supplying sleeve from outside to inside successively, and the mouth mouth of oil nozzle is connected with through hole.
The utility model compared with prior art has following effect:
1. goal of the invention of the present utility model is achieved in that before high speed rotor starts, pump into the pressure oil of certain pressure by fuel oil supply nozzle, because hydrostatic effects is lifted rotating shaft, start the high speed rotor rotation then, raising along with rotor speed, in conical bearing, produce dynamic pressure effect, produce kinetic pressure, this moment, kinetic pressure participated in the rotating shaft carrying, and played a major role, and rotor produces vibration in rotary course, this moment, the dry friction effect of metal-rubber ring inside produced dry-friction damping, therefore the consumption systems vibrational energy during by the critical speed of rotation district or during the high vibration that occurs in the running, absorbs the energy of vibration at rotor, its vibration amplitude is descended, and then improved rotor dynamic stability, and make the effective vibration damping of system, realize the control to the high-speed rotating machine vibration.
2. the utility model conical hybrid bearing and metal-rubber ring combination support vibration damper have good damping vibration attenuation effect to the vibration that is caused by the amount of unbalance perturbed force, and can effectively enlarge system's unstability boundary rotating speed, the instability speed maximum has improved 60% under the similarity condition.
3. the utility model is along with the increase of charge oil pressure, and the fundamental vibration amplitude reduces thereupon, and system's instability speed improves, and increases damping constant by reducing metal-rubber ring bearing rigidity, and effectiveness in vibration suppression is more obvious, and unstability boundary rotating speed improves more manyly.When oil film rigidity and damping and metal-rubber ring stiffness and damping reach reasonable coupling, it is optimum that effectiveness in vibration suppression reaches, experiment peak-to-peak value data show, under certain charge oil pressure, along with the reduction of metal-rubber ring stiffness coefficient, and the increase of damping constant, metal-rubber dry-friction damping effect better, the fundamental vibration amplitude descends one by one, along with the increase of charge oil pressure, this damping shock absorber effectiveness in vibration suppression is more obvious, and peak swing descends 70%.
4. the utility model is simple in structure, manufactures easily, and is with low cost.
Description of drawings
Fig. 1 is overall structure schematic representation of the present utility model.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, a kind of dynamic and hydrostatic bearing supporting vibration damper for cone axis of present embodiment comprises support 1, vibration damper outer shroud 2, metal-rubber ring 3, oil supplying sleeve 4, bearing shell 5, oil nozzle 6, first end cap 7 and second end cap 8, cone axis 9 is located in the axis hole of support 1, the internal taper hole of bearing shell 5 is provided with rectangular recess 10, the outer wall of bearing shell 5 is provided with annular groove 11, be provided with through hole 12 between described rectangular recess 10 and the annular groove 11, bearing shell 5 is sleeved on the conical end of cone axis 9, oil supplying sleeve 4 and vibration damper outer shroud 2 are sleeved on the outer end of bearing shell 5 from the inside to the outside successively, and be provided with metal-rubber ring 3 between oil supplying sleeve 4 and the vibration damper outer shroud 2, first end cap 7 and second end cap 8 are separately positioned on the two ends, the left and right sides of support 1, oil nozzle 6 is located on second end cap 8 and the oil supplying sleeve 4 from outside to inside successively, and the mouth mouth of oil nozzle 6 is connected with through hole 12.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the dynamic and hydrostatic bearing supporting vibration damper of present embodiment also comprises pad 13, and pad 13 is arranged between first end cap 7 and the support 1.So arrange, adjust conical bearing intermittently by pad 13, by bolt first end cap 7 is connected with support 1 behind the adjusting play.Other composition is identical with embodiment one with annexation.
Though the present invention discloses as above with preferred embodiment; yet be not of the present invention in order to limit; those skilled in the art can also do other variations in spirit of the present invention; and be applied in the NM field of the present invention; certainly, these variations of doing according to spirit of the present invention all should be included in the present invention's scope required for protection.
Claims (2)
1. a dynamic and hydrostatic bearing that is used for cone axis supports vibration damper, it is characterized in that: described dynamic and hydrostatic bearing supporting vibration damper comprises support (1), vibration damper outer shroud (2), metal-rubber ring (3), oil supplying sleeve (4), bearing shell (5), oil nozzle (6), first end cap (7) and second end cap (8), cone axis (9) is located in the axis hole of support (1), the internal taper hole of bearing shell (5) is provided with rectangular recess (10), the outer wall of bearing shell (5) is provided with annular groove (11), be provided with through hole (12) between described rectangular recess (10) and the annular groove (11), bearing shell (5) is sleeved on the conical end of cone axis (9), oil supplying sleeve (4) and vibration damper outer shroud (2) are sleeved on the outer end of bearing shell (5) from the inside to the outside successively, and be provided with metal-rubber ring (3) between oil supplying sleeve (4) and the vibration damper outer shroud (2), first end cap (7) and second end cap (8) are separately positioned on the two ends, the left and right sides of support (1), oil nozzle (6) is located on second end cap (8) and the oil supplying sleeve (4) from outside to inside successively, and the mouth mouth of oil nozzle (6) is connected with through hole (12).
2. according to the described a kind of dynamic and hydrostatic bearing supporting vibration damper for cone axis of claim 1, it is characterized in that: described dynamic and hydrostatic bearing supporting vibration damper also comprises pad (13), and pad (13) is arranged between first end cap (7) and the support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091400 CN203051616U (en) | 2013-02-28 | 2013-02-28 | Hybrid bearing supporting vibration damper for tapered shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091400 CN203051616U (en) | 2013-02-28 | 2013-02-28 | Hybrid bearing supporting vibration damper for tapered shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051616U true CN203051616U (en) | 2013-07-10 |
Family
ID=48734572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320091400 Expired - Fee Related CN203051616U (en) | 2013-02-28 | 2013-02-28 | Hybrid bearing supporting vibration damper for tapered shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003593A (en) * | 2015-07-17 | 2015-10-28 | 厦门理工学院 | Hybrid bearing supporting shock absorber used for cone shaft |
| CN105215426A (en) * | 2015-11-02 | 2016-01-06 | 中北大学 | Deep hole machining cutter holder vibration reduction support device |
| CN113339406A (en) * | 2021-05-26 | 2021-09-03 | 河南科技大学 | Bidirectional thrust conical sliding bearing |
-
2013
- 2013-02-28 CN CN 201320091400 patent/CN203051616U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003593A (en) * | 2015-07-17 | 2015-10-28 | 厦门理工学院 | Hybrid bearing supporting shock absorber used for cone shaft |
| CN105215426A (en) * | 2015-11-02 | 2016-01-06 | 中北大学 | Deep hole machining cutter holder vibration reduction support device |
| CN105215426B (en) * | 2015-11-02 | 2017-05-24 | 中北大学 | Vibration reducing supporter of deep hole machining cutter bar |
| CN113339406A (en) * | 2021-05-26 | 2021-09-03 | 河南科技大学 | Bidirectional thrust conical sliding bearing |
| CN113339406B (en) * | 2021-05-26 | 2023-03-10 | 河南科技大学 | Bidirectional thrust conical sliding bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140228 |