CN110067859A - A kind of floating type rotation axis seal structure of stable type - Google Patents
A kind of floating type rotation axis seal structure of stable type Download PDFInfo
- Publication number
- CN110067859A CN110067859A CN201910277633.XA CN201910277633A CN110067859A CN 110067859 A CN110067859 A CN 110067859A CN 201910277633 A CN201910277633 A CN 201910277633A CN 110067859 A CN110067859 A CN 110067859A
- Authority
- CN
- China
- Prior art keywords
- output flange
- floating
- floating bushing
- oil
- damping
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000003921 oil Substances 0.000 claims description 53
- 239000010687 lubricating oil Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Abstract
The present invention relates to a kind of sealing devices, more particularly, to a kind of floating type rotation axis seal structure of stable type.A kind of floating type rotation axis seal structure of stable type, including output flange, oil seal seat is provided on output flange, oil sealing is provided between oil seal seat and output flange, floating bushing is provided between oil sealing and output flange, pass through connection pin connection between floating bushing and output flange, floating bushing is corresponded on output flange is provided with annular groove, elastic ring is provided in annular groove, it is peripherally disposed on elastic ring to have multiple damping troughs, supporting block is provided in damping trough, it is connected between supporting block and the bottom surface of damping trough by damping spring, close to the side of floating bushing, setting is fluted in supporting block, ball is provided in groove, side on damping trough close to floating bushing is provided with the block for preventing ball to be detached from groove.The present invention can effectively cancel out the beat bounce of axis to reach effective sealing effect.
Description
Technical field
The present invention relates to a kind of sealing devices, more particularly, to a kind of floating type rotation axis seal structure of stable type.
Background technique
The rotation axis seal mode that we use at present is still based on traditional pure oil sealing sealing formula structure.These tradition
Sealing structure by part (cabinet, end cap, axis, oil seal seat etc.) manufacture and installation error influenced, especially installation oil
Chamber hole, cabinet, end cap, the output shaft nonconcentricity of envelope, to the flange after assembling, (oil seal lip is matched for the deviation accumulation of each part
Conjunction face) on, it be easy to cause the beat of flange shaft to beat in assembly, causes oil sealing off-centre operation, the beat bounce of flange shaft is made
It is overproof excessive at the diameter of axle and axis malalignment of its sealing position and keep outside framework oil seal lip Radial pressure distribution uneven, lip
The space plane position of formation destroys misalignment by the beat bounce of flange and causes oil film thickness change dramatically, destroys the item of sealing
Part and the leakage for causing output shaft；Simultaneously because cavity, output shaft are different with the structural thermal expansion coefficient of oil sealing, in above-mentioned work
Being also possible to make oil sealing to generate veneer distortion under condition makes poorly sealed and permeability.
Such as Chinese patent notification number are as follows: CN204358106U, in a kind of floating type rotary shaft of bulletin on May 27th, 2015
Sealing device.When the assembly axis rotates, oil sealing, floating bushing, O-ring are combined into a floating sealing structure, output flange together
On oil sealing faying face plus floating bushing, floating bushing enable oil sealing to float with axis, to keep further through O-ring and axis floating seal
Oil seal lip is in good fit-state with axial plane always, and the beat bounce for offsetting axis reaches sealing effect.Although the device
It is cheap, but the elasticity for depending O-ring alone in practical applications can not effectively cancel out the beat bounce of axis to reach
Effective sealing effect.
Summary of the invention
Primarily directed to the above problem, the beat bounce that axis can be effectively canceled out by providing one kind has the present invention to reach
The floating type rotation axis seal structure of the stable type of the sealing effect of effect.
The purpose of the present invention is mainly to be achieved by following proposal: a kind of floating type rotation axis seal knot of stable type
Structure, including output flange are provided with oil seal seat on the output flange, are provided between the oil seal seat and output flange
Oil sealing is provided with floating bushing between the oil sealing and output flange, the first cotter way is provided on the floating bushing, described
The second cotter way is provided on output flange, by being located at the first cotter way and the second cotter way between the floating bushing and output flange
Interior connection pin connection corresponds to floating bushing on the output flange and is provided with annular groove, is provided with bullet in the annular groove
Property circle, peripherally disposed on the elastic ring to have multiple damping troughs, elastic ring is arranged in close to floating bushing in damping trough
On side, it is provided with supporting block in the damping trough, passes through damping spring between the supporting block and the bottom surface of damping trough
It connects, close to the side of floating bushing, setting is fluted in the supporting block, ball is provided in the groove, described subtracts
The side of floating bushing is provided with the block for preventing ball to be detached from groove on shake slot, the side of the ball is located at recessed
In slot, the other side of the ball is against on floating bushing.Be provided with oil seal seat on output flange, oil seal seat and output flange it
Between be provided with oil sealing, floating bushing is provided between oil sealing and output flange, is provided with the first cotter way on floating bushing, on output flange
Be provided with the first cotter way relative to the second cotter way, between floating bushing and output flange by be located at the first cotter way and second pin
Connection pin connection in slot, floating bushing and output flange are rotated by the way that connecting pin and axis are fixed, correspond to floating bushing on output flange
It is provided with annular groove, elastic ring is provided in annular groove, the elasticity and oil sealing elasticity of elastic ring make floating bushing float to form one
Whole follower structure, the beat that can offset part axis is beated, peripherally disposed on elastic ring to have multiple damping troughs, is subtracted
Elastic ring is arranged on the side of floating bushing in shake slot, is provided with supporting block in damping trough, supporting block and damping trough inner wall it
Between to be slidably connected, there is gap between supporting block and damping trough inner wall, pass through damping between supporting block and the bottom surface of damping trough
Spring connects, and close to the side of floating bushing, setting is fluted in supporting block, and ball, close floating on damping trough are provided in groove
The side of set is provided with the block for preventing ball to be detached from groove, and block can prevent ball to be detached from groove, and the one of ball
Side is located in groove, and the other side of ball is against on floating bushing, and ball is against floating under the action of damping spring and supporting block
It puts on, the setting of ball can reduce the frictional dissipation between elastic ring and floating bushing, and the setting of damping spring being capable of absorption axiss
The vibration energy that beat generates when beating, to effectively cancel out the beat bounce of axis to reach effective sealing effect, surely
Qualitative height, and long service life.
Preferably, being provided with lubricating oil in the damping trough.Lubricating oil is provided in damping trough, lubricating oil can be in
Semi-solid when ball stress drives supporting block mobile toward damping spring direction, enables to lubricating oil to be squeezed thus from subtracting
It shakes and is overflowed at channel opening, reduce the frictional dissipation of the extrusion and collision between elastic ring and floating bushing.
Preferably, being provided with oil baffle disc between the oil seal seat and output flange, the oil baffle disc is arranged in oil
On the axial side of envelope and floating bushing.Be provided with oil baffle disc between oil seal seat and output flange, oil baffle disc setting in oil sealing and
On the axial side of floating bushing, oil baffle disc can play effective buffer action, and improve the sealing effect to lubricating oil
Fruit.
Preferably, the elastic ring is O-shaped rubber seal.Elastic ring is O-shaped rubber seal, at low cost, resistance to
Abrasion, long service life.
Therefore, a kind of floating type rotation axis seal structure of stable type of the invention has following advantages: structure of the invention letter
Single, the setting of elastic ring and damping spring can effectively cancel out the beat bounce of axis so as to reach good sealing effect
Fruit, the setting of ball can reduce the loss of the collision friction between elastic ring and floating bushing, increase service life.
Detailed description of the invention
Attached drawing 1 is traditional rotary shaft oil seal sealed structural schematic diagram.
Attached drawing 2 is structural schematic diagram of the invention.
Attached drawing 3 is the enlarged drawing in attached drawing 2 at A.
Attached drawing 4 is the enlarged drawing in attached drawing 3 at B.
Attached drawing 5 is the structural schematic diagram of floating bushing in the present invention.
Attached drawing 6 is the structural schematic diagram of output flange in the present invention.
It illustrates: 1- oil seal seat, 2- oil sealing, 3- oil baffle disc, 4- output flange, 5- floating bushing, 6- connecting pin, 7- elasticity
Circle, 8- supporting block, 9- damping trough, 10- damping spring, 11- ball, 12- annular groove, 13- groove, 14- block, 15- first are sold
Slot, the second cotter way of 16-.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1:
As shown in Fig. 1,2,3,4,5,6, a kind of floating type rotation axis seal structure of stable type, including output flange 4, output flange
It is provided with oil seal seat 1 on 4, oil sealing 2 is provided between oil seal seat 1 and output flange 4, is provided between oil sealing 2 and output flange 4
Floating bushing 5 is provided with the first cotter way 15 on floating bushing 5, be provided on output flange 4 with the first cotter way 15 relative to the second pin
Slot 16 is connected by the connecting pin 6 being located in the first cotter way 15 and the second cotter way 16 between floating bushing 5 and output flange 4, is floated
Set 5 is rotated with output flange 4 by the way that connecting pin 6 and axis are fixed, and oil baffle disc 3 is provided between oil seal seat 1 and output flange 4, is kept off
Food tray 3 is arranged on the axial side of oil sealing and floating bushing 5, and oil baffle disc 3 can play effective buffer action, and improve
To the sealing effect of lubricating oil, floating bushing 5 is corresponded on output flange 4 and is provided with annular groove 12, is provided with bullet in annular groove 12
Property circle 7, axis rotation when, the elasticity and oil sealing elasticity of elastic ring 7 make floating bushing 5 float formed an entirety follower structure,
The beat bounce of part axis can be offset, elastic ring 7 is O-shaped rubber seal, at low cost, wear-resistant, long service life, elasticity
Peripherally disposed on circle 7 to have multiple damping troughs 9, elastic ring 7 is arranged on the side of floating bushing 5 in damping trough 9, damping
Be provided with supporting block 8 in slot 9, be slidably connected between 9 inner wall of supporting block 8 and damping trough, supporting block 8 and 9 inner wall of damping trough it
Between there is gap, connected between supporting block 8 and the bottom surface of damping trough 9 by damping spring 10, close to floating bushing 5 in supporting block 8
Side setting fluted 13, ball 11 is provided in groove 13, is provided with and is used for close to the side of floating bushing 5 on damping trough 9
Ball 11 is prevented to be detached from the block 14 of groove 13, block 14 can prevent ball 11 to be detached from groove 13, the side position of ball 11
In in groove 13, the other side of ball 11 is against on floating bushing 5, and ball 11 supports under the action of damping spring 10 and supporting block 8
On floating bushing 5, the setting of ball 11 can reduce the frictional dissipation between elastic ring 7 and floating bushing 5, oil sealing 2, floating bushing 5,
Elastic ring 7, damping spring 10 are combined into a floating sealing structure together, and the setting of damping spring 10 being capable of the jump of absorption axiss beat
The vibration energy generated when dynamic, so that the beat for effectively canceling out axis beats to reach effective sealing effect, stability is high,
And long service life.
Lubricating oil is provided in damping trough 9, lubricating oil can be in semi-solid, and 11 stress of ball drives supporting block 8 is past to subtract
When shaking the movement of 10 direction of spring, enables to lubricating oil to be squeezed to overflow from 9 opening of damping trough, reduce elastic ring 7
The frictional dissipation of extrusion and collision between floating bushing 5.
It should be understood that being somebody's turn to do, examples are only for illustrating the present invention and not for limiting the scope of the present invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (4)
1. a kind of floating type rotation axis seal structure of stable type, which is characterized in that including output flange, on the output flange
It is provided with oil seal seat, oil sealing is provided between the oil seal seat and output flange, is set between the oil sealing and output flange
It is equipped with floating bushing, the first cotter way is provided on the floating bushing, the second cotter way is provided on the output flange, it is described
By the connection pin connection being located in the first cotter way and the second cotter way between floating bushing and output flange, on the output flange
Corresponding floating bushing is provided with annular groove, and elastic ring is provided in the annular groove, is along the circumferential direction set on the elastic ring
Multiple damping troughs are equipped with, damping trough is arranged in elastic ring on the side of floating bushing, support is provided in the damping trough
Block is connected between the supporting block and the bottom surface of damping trough by damping spring, close to floating bushing in the supporting block
Side setting is fluted, and ball is provided in the groove, is arranged on the damping trough close to the side of floating bushing useful
In the block for preventing ball to be detached from groove, the side of the ball is located in groove, and the other side of the ball is against floating
It is dynamic to put on.
2. the floating type rotation axis seal structure of a kind of stable type according to claim 1, which is characterized in that the damping
Lubricating oil is provided in slot.
3. the floating type rotation axis seal structure of a kind of stable type according to claim 1, which is characterized in that the oil sealing
Oil baffle disc is provided between seat and output flange, the oil baffle disc is arranged on the axial side of oil sealing and floating bushing.
4. the floating type rotation axis seal structure of a kind of stable type according to claim 1 or 2 or 3, which is characterized in that described
Elastic ring be O-shaped rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910277633.XA CN110067859B (en) | 2019-04-08 | Stable floating type rotary shaft sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910277633.XA CN110067859B (en) | 2019-04-08 | Stable floating type rotary shaft sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110067859A true CN110067859A (en) | 2019-07-30 |
| CN110067859B CN110067859B (en) | 2024-04-23 |
Family
ID=
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020158469A1 (en) * | 2001-04-25 | 2002-10-31 | G.B. Tubulars And Shell Oil Company | Threaded coupling with water exclusion seal system |
| CN1488051A (en) * | 2001-01-25 | 2004-04-07 | ס�ѽ�����ҵ��ʽ���� | Threaded joint for steel pipe with excellent seizure and corrosion resistances |
| CN101743417A (en) * | 2007-07-16 | 2010-06-16 | 特纳瑞斯连接股份公司 | Threaded joint with resilient seal ring |
| CN102027186A (en) * | 2008-02-29 | 2011-04-20 | 特纳瑞斯连接有限责任公司 | Threaded joint with improved resilient seal ring |
| EP2826932A2 (en) * | 2013-07-12 | 2015-01-21 | Siegthalerfabrik GmbH | Flange for connecting two structural components, in particular a tower of a wind power plant |
| CN204358106U (en) * | 2014-12-08 | 2015-05-27 | 江麓机电集团有限公司 | Floating type sealing device for rotary shaft |
| CN204532795U (en) * | 2015-01-26 | 2015-08-05 | 宝鸡石油机械有限责任公司 | The floating type intermediate draw bar sealing configuration of a kind of drilling pump |
| CN205315704U (en) * | 2015-12-21 | 2016-06-15 | 北京天地华泰矿业管理股份有限公司 | Coal -winning machine planetary mechanism floating oil seal structure |
| CN209892744U (en) * | 2019-04-08 | 2020-01-03 | 浙江万里扬新能源驱动科技有限公司 | Stable floating type rotary shaft sealing structure |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488051A (en) * | 2001-01-25 | 2004-04-07 | ס�ѽ�����ҵ��ʽ���� | Threaded joint for steel pipe with excellent seizure and corrosion resistances |
| US20020158469A1 (en) * | 2001-04-25 | 2002-10-31 | G.B. Tubulars And Shell Oil Company | Threaded coupling with water exclusion seal system |
| CN101743417A (en) * | 2007-07-16 | 2010-06-16 | 特纳瑞斯连接股份公司 | Threaded joint with resilient seal ring |
| CN102027186A (en) * | 2008-02-29 | 2011-04-20 | 特纳瑞斯连接有限责任公司 | Threaded joint with improved resilient seal ring |
| EP2826932A2 (en) * | 2013-07-12 | 2015-01-21 | Siegthalerfabrik GmbH | Flange for connecting two structural components, in particular a tower of a wind power plant |
| CN204358106U (en) * | 2014-12-08 | 2015-05-27 | 江麓机电集团有限公司 | Floating type sealing device for rotary shaft |
| CN204532795U (en) * | 2015-01-26 | 2015-08-05 | 宝鸡石油机械有限责任公司 | The floating type intermediate draw bar sealing configuration of a kind of drilling pump |
| CN205315704U (en) * | 2015-12-21 | 2016-06-15 | 北京天地华泰矿业管理股份有限公司 | Coal -winning machine planetary mechanism floating oil seal structure |
| CN209892744U (en) * | 2019-04-08 | 2020-01-03 | 浙江万里扬新能源驱动科技有限公司 | Stable floating type rotary shaft sealing structure |
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