CN102788113A - Squeeze film damper for transmission shafting - Google Patents
Squeeze film damper for transmission shafting Download PDFInfo
- Publication number
- CN102788113A CN102788113A CN2012102487925A CN201210248792A CN102788113A CN 102788113 A CN102788113 A CN 102788113A CN 2012102487925 A CN2012102487925 A CN 2012102487925A CN 201210248792 A CN201210248792 A CN 201210248792A CN 102788113 A CN102788113 A CN 102788113A
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- damper
- ring
- inner ring
- squeeze film
- outer ring
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Abstract
The invention relates to a squeeze film damper for a transmission shafting, which comprises a shaft, wherein the external circumference of the shaft is sleeved by an inner damper ring with a groove in the circumference, an outer damper ring is arranged in the groove in the circumference of the inner damper ring, an oil chamber is formed between the outer damper ring and the inner damper ring, lubricant oil is placed in the oil chamber; both ends of the oil chamber are sealed by seal rings; and a notch of the groove of the inner damper ring is connected with both end faces of the outer damper ring through connecting pieces. The squeeze film damper is simple in structure, an independent mechanism is adopted to realize the damper, the squeeze film damper is convenient in fabrication and installation, can be arranged at any position in the shafting, and has a good damping effect, and the installation and operation of the squeeze film damper are not limited.
Description
Technical field
The present invention relates to the damping vibration attenuation technical field, especially a kind of squeeze film damper that is used on the drive line.
Background technique
Damper is the resistance of motion to be provided, the device of depletion kinergety.Utilize damping to come energy-obsorbing and damping; And in the rotating machinery antivibration area; Squeeze film damper is as a kind of New Damping vibration damper; It has simple in structure, occupy little space, easy to manufacture, characteristics such as effectiveness in vibration suppression is remarkable, be widely used in space flight, aviation, military project, firearms, the automobile and other industries.
Squeeze film damping shock absorber of the prior art adopts the outer shroud of rolling bearing or sliding bearing and the interference fit of bearing support to change Spielpassung into usually, in the gap, fills the lubricant oil to flow; The equipped cover of interference is as the interior ring of damper on outer race; Limit said in the rotation of ring, make it can only translation, thus the lubricant oil in the top clearance; Form oil film, thereby produce damping vibration attenuation function.This simple in structure, cost is low, but in some engineering fields, receives the restriction of bearing place installing space and oil supply system, can not this squeeze film damper be installed at bearing outer ring.Its use has narrow limitation, and inconvenience is installed, and needs to rely on the purpose that bearing means is realized damping vibration attenuation.
Summary of the invention
The applicant installs to the squeeze film damper in the above-mentioned existing production technology has narrow limitation; Shortcomings such as inconvenience are installed, provide a kind of rational in infrastructure, easy to operate drive line squeeze film damper; Thereby make it need not to rely on bearing; Adopt independent agency, can be installed on axle easily and fasten any position that installing space is arranged, damping vibration attenuation is effective.
The technological scheme that the present invention adopted is following:
A kind of drive line squeeze film damper; Comprise axle, suit circumferentially has the damper inner ring of groove on the excircle of axle, and the damper outer ring is set in the groove that the damper inner ring circumferentially has; Form oil pocket between damper outer ring and the damper inner ring; Place lubricant oil in the said oil pocket, the two ends of said oil pocket are through the seal ring sealing, and the groove mouth of damper inner ring is connected with the both ends of the surface of damper outer ring through link respectively.
Further improvement as technique scheme:
The outer side surface at two ends, damper outer ring has axisymmetric rectangular recess, and middle part, damper outer ring radially has axisymmetric oil hole;
The outer side surface at damper inner ring two ends has axisymmetric reach through hole;
Also comprise pin, said pin passes damper reach through hole that inner ring is opened to damper outer ring and opens in the rectangular recess;
Said damper inner ring is connected with the outer peripheral surface interference fit of axle.
Beneficial effect of the present invention is following:
The present invention is simple in structure, adopts independent agency to realize damping shock absorber, make with easy for installation, and can be the arbitrary position installation of axis at axle, it is installed with work does not have narrow limitation, and damping vibration attenuation is effective.
The present invention is connected the damper inner ring through pin with the damper outer ring; Make damper inner ring and damper outer ring produce radially relative movement and not produce circumferential relative movement; When axle rotates, the rotation of damper inner ring, and the damper outer ring is because also rotation together thereupon of the effect of pin.The lubricant oil in the oil pocket is pushed in radially relative movement between damper inner ring and the damper outer ring, thereby has effectively played the effect of damping vibration attenuation, can be widely used in all kinds of systems.
Description of drawings
Fig. 1 is structural representation of the present invention (whole-cutaway view).
Fig. 2 is along the sectional view in A-A cross section among Fig. 1.
Fig. 3 is the side view of damper of the present invention outer ring.
Fig. 4 is the side view of damper inner ring of the present invention.
Among the figure: 1, axle; 2, pin; 3, seal ring; 4, damper inner ring; 401, reach through hole; 5, lubricant oil; 6, oil hole; 7, damper outer ring; 701, rectangular recess.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention is described.
As depicted in figs. 1 and 2, the drive line squeeze film damper of present embodiment is used to reduce the transverse vibration that axle is; Comprise axle 1; Suit circumferentially has the damper inner ring 4 of groove on the excircle of axle 1, and damper outer ring 7 is set in the groove that damper inner ring 4 circumferentially has, and forms oil pocket between damper outer ring 7 and the damper inner ring 4; Place lubricant oil 5 in the oil pocket; Play damping function, the two ends of oil pocket are through seal ring 3 sealings, and the groove mouth of damper inner ring 4 is connected with the both ends of the surface of damper outer ring 7 through link respectively.See Fig. 3, the outer side surface at 7 two ends, damper outer ring has axisymmetric rectangular recess 701, and 7 middle parts, damper outer ring radially have axisymmetric oil hole 6, is convenient in oil pocket, inject lubricant oil 5; See Fig. 4, the outer side surface at damper inner ring 4 two ends has axisymmetric reach through hole 401, and damper inner ring 4 groove mouth internal faces have the concave inward structure that is used to install seal ring 3.Link according to the invention is pin 2; Pin 2 pass 4 of damper inner rings open reach through hole 401 to the damper outer ring 7 open in the rectangular recess 701, pin 2 is as making damper inner ring 4 and damper outer ring 7 produce radially relative movement and not produce circumferential relative movement.
In the as installed process:
Damper inner ring 4 to a certain position of axle 1, is installed damper outer ring 7 through interference fit in the set groove of damper inner ring 4 excircles; Between damper inner ring 4 and the damper outer ring 7 certain clearance is arranged diametrically; Thereby the formation oil pocket is installed seal ring 3 between damper inner ring 4 and the damper outer ring 7, and seal ring 3 is flush-mounted in the concave inward structure that the internal face of the set groove of damper inner ring 4 excircles opens; Make its sealing reliable; In oil pocket, inject lubricant oil 5 from oil hole 6, annotated lubricant oil 5, oil hole 6 is sealed; The pin 2 pass 4 of damper inner rings open reach through hole 401 to the damper outer ring 7 open in the rectangular recess 701.Promptly accomplished installation of the present invention, its simple installation, high working efficiency.
In the actual using process:
When axle system rotates; I.e. axle 1 rotation; Because damper inner ring 4 is an interference fit with axle 1, damper inner ring 4 is and then axle system rotation together also, can only produce radially relative movement because the effect of pin 2 makes between damper inner ring 4 and the damper outer ring 7 simultaneously; Can not produce circumferential relative movement, so damper outer ring 7 is also along with damper inner ring 4 rotates together.When axle 1 produced transverse vibration, axle 1 transverse vibration drove the transverse vibration of damper inner ring 4, and the transverse vibration of damper inner ring 4 can pass to damper outer ring 7 through lubricant oil 5, makes damper outer ring 7 also produce vibration; But owing to do not have rigid constraint between damper inner ring 4 and the damper outer ring 7; Be to produce radially relative movement between them; Therefore the vibration in damper inner ring 4 and damper outer ring 7 is not synchronous vibration, and the lubricant oil 5 in their direct relative movement meeting extruding oil pockets is through the viscosity generation damping force of lubricant oil 5; The vibrational energy of consumption systems, thus play the effect of damping vibration attenuation.
More than describing is to explanation of the present invention, is not that institute of the present invention restricted portion within protection scope of the present invention, can be done any type of modification referring to claim to the qualification of invention.
Claims (5)
1. drive line squeeze film damper; It is characterized in that: comprise axle (1); Suit circumferentially has the damper inner ring (4) of groove on the excircle of axle (1); Damper outer ring (7) is set in the groove that damper inner ring (4) circumferentially has, forms oil pocket between damper outer ring (7) and the damper inner ring (4), place lubricant oil (5) in the said oil pocket; The two ends of said oil pocket are through seal ring (3) sealing, and the groove mouth of damper inner ring (4) is connected with the both ends of the surface of damper outer ring (7) through link respectively.
2. drive line squeeze film damper as claimed in claim 1; It is characterized in that: the outer side surface at two ends, damper outer ring (7) has axisymmetric rectangular recess (701), and damper outer ring (7) middle part radially has axisymmetric oil hole (6).
3. drive line squeeze film damper as claimed in claim 1 is characterized in that: the outer side surface at damper inner ring (4) two ends has axisymmetric reach through hole (401).
4. like any described drive line squeeze film damper of claim 1-3; It is characterized in that: also comprise pin (2), said pin (2) passes in damper inner ring (4) reach through hole of opening (401) to damper outer ring (7) rectangular recess of opening (701).
5. drive line squeeze film damper as claimed in claim 1 is characterized in that: said damper inner ring (4) is connected with the outer peripheral surface interference fit of axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102487925A CN102788113A (en) | 2012-07-18 | 2012-07-18 | Squeeze film damper for transmission shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102487925A CN102788113A (en) | 2012-07-18 | 2012-07-18 | Squeeze film damper for transmission shafting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102788113A true CN102788113A (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102487925A Pending CN102788113A (en) | 2012-07-18 | 2012-07-18 | Squeeze film damper for transmission shafting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788113A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604587A (en) * | 2013-08-27 | 2014-02-26 | 杭州海罗马科技有限公司 | High-speed rotation testing machine and method for testing high-speed rotation strength performance of rotor |
| CN106168267A (en) * | 2015-05-21 | 2016-11-30 | 通用汽车环球科技运作有限责任公司 | Dynamic harmonic static organ |
| CN106640959A (en) * | 2016-12-27 | 2017-05-10 | 重庆维庆液压机械有限公司 | Hydraulic ball bearing |
| CN108279119A (en) * | 2017-12-28 | 2018-07-13 | 华中科技大学 | A kind of squeeze film damper performance test apparatus of Parameter adjustable |
| CN109779763A (en) * | 2019-01-22 | 2019-05-21 | 中国航发控制系统研究所 | A kind of micro-adjusting mechanism and throttle control system |
| CN111005937A (en) * | 2018-10-04 | 2020-04-14 | 三菱重工业株式会社 | Squeeze film damper and rotary machine |
| CN112160988A (en) * | 2020-10-14 | 2021-01-01 | 湖南大学 | Squeeze film damper, thrust bearing using same and use method of thrust bearing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176856Y (en) * | 1993-10-18 | 1994-09-14 | 张锡圣 | High-precision dynamical-statical pressure oil film bearing numerically controlled machine tool |
| CN200989379Y (en) * | 2006-12-14 | 2007-12-12 | 南京工艺装备制造有限公司 | Damper sliding block of rolling linear guide rail pair |
| CN102019438A (en) * | 2010-11-26 | 2011-04-20 | 大连机床集团有限责任公司 | Spindle box with oil film damping sleeve auxiliary support |
| CN102062145A (en) * | 2009-11-18 | 2011-05-18 | 中国北车集团大连机车研究所有限公司 | Squeeze film damper bearing |
-
2012
- 2012-07-18 CN CN2012102487925A patent/CN102788113A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176856Y (en) * | 1993-10-18 | 1994-09-14 | 张锡圣 | High-precision dynamical-statical pressure oil film bearing numerically controlled machine tool |
| CN200989379Y (en) * | 2006-12-14 | 2007-12-12 | 南京工艺装备制造有限公司 | Damper sliding block of rolling linear guide rail pair |
| CN102062145A (en) * | 2009-11-18 | 2011-05-18 | 中国北车集团大连机车研究所有限公司 | Squeeze film damper bearing |
| CN102019438A (en) * | 2010-11-26 | 2011-04-20 | 大连机床集团有限责任公司 | Spindle box with oil film damping sleeve auxiliary support |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604587A (en) * | 2013-08-27 | 2014-02-26 | 杭州海罗马科技有限公司 | High-speed rotation testing machine and method for testing high-speed rotation strength performance of rotor |
| CN106168267A (en) * | 2015-05-21 | 2016-11-30 | 通用汽车环球科技运作有限责任公司 | Dynamic harmonic static organ |
| CN106640959A (en) * | 2016-12-27 | 2017-05-10 | 重庆维庆液压机械有限公司 | Hydraulic ball bearing |
| CN108279119A (en) * | 2017-12-28 | 2018-07-13 | 华中科技大学 | A kind of squeeze film damper performance test apparatus of Parameter adjustable |
| CN108279119B (en) * | 2017-12-28 | 2019-05-21 | 华中科技大学 | A kind of squeeze film damper performance test apparatus of Parameter adjustable |
| CN111005937A (en) * | 2018-10-04 | 2020-04-14 | 三菱重工业株式会社 | Squeeze film damper and rotary machine |
| US11053977B2 (en) | 2018-10-04 | 2021-07-06 | Mitsubishi Heavy Industries, Ltd. | Squeeze film damper and rotary machine |
| CN111005937B (en) * | 2018-10-04 | 2021-11-19 | 三菱重工业株式会社 | Squeeze film damper and rotary machine |
| CN109779763A (en) * | 2019-01-22 | 2019-05-21 | 中国航发控制系统研究所 | A kind of micro-adjusting mechanism and throttle control system |
| CN112160988A (en) * | 2020-10-14 | 2021-01-01 | 湖南大学 | Squeeze film damper, thrust bearing using same and use method of thrust bearing |
| CN112160988B (en) * | 2020-10-14 | 2021-12-24 | 湖南大学 | Squeeze film damper, thrust bearing using same and use method of thrust bearing |
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Application publication date: 20121121 |