CN106969146A - The air seal and method of a kind of reciprocal rod member of non-linear - Google Patents
The air seal and method of a kind of reciprocal rod member of non-linear Download PDFInfo
- Publication number
- CN106969146A CN106969146A CN201710384516.4A CN201710384516A CN106969146A CN 106969146 A CN106969146 A CN 106969146A CN 201710384516 A CN201710384516 A CN 201710384516A CN 106969146 A CN106969146 A CN 106969146A
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- CN
- China
- Prior art keywords
- rod member
- servo
- friction plate
- sealing
- actuated friction
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- 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.)
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of aeroseal method and apparatus of the reciprocal rod member of non-linear, it is related to the sealing between rod member and apparatus casing, including sealing base, servo-actuated friction plate, sealing gland, sealing base is fixed on apparatus casing, described sealing gland is fixed on sealing base, the groove for being slided including servo-actuated friction plate is formed between sealing gland and sealing base, described sealing base and servo-actuated friction plate are provided with the hole passed through for rod member, rod member inserts in the hole and stretches into enclosure interior, servo-actuated friction plate and the seamless sliding contact of rod member, between described sealing base and housing, between described groove and servo-actuated friction plate, between described servo-actuated friction plate and rod member, sealing is in close contact.The present invention have sealing property is reliable, leakage rate is small, abrasion is small, it is applied widely the features such as.
Description
First, technical field
The present invention relates to the air seal that a kind of sealing property is reliable, leakage rate is small, abrasion is small, one is concretely related to
Plant and fill up reciprocal rod member and fixing equipment body clearance, the sealing device for preventing fixing equipment enclosure interior gas medium excessive.
2nd, background technology
According to the movement locus of reciprocal rod member, linear reciprocal motion rod member and non-linear reciprocating movement rod can be classified as
Part.So-called linear reciprocal motion rod member refers to that only direction is moved back and forth rod member at the center line, and does not have in other directions
The motion of displacement, movement locus is straight line；So-called non-linear, which is moved back and forth, refers to that rod member is back and forth being transported along centerline direction
While dynamic, the motion of displacement is produced in the plane intersected with center line, movement locus is curve, i.e., in reciprocatory movement
Generation swings, vibrates or rocked by a relatively large margin.
The gap of rod member and housing is held essentially constant in the motion process of linear reciprocal rod member, this and reciprocal axle
Motion process is similar, the sealing to such rod member, has there is more ripe method and apparatus at present.In non-linear reciprocating lever
In part motion process, in rod member center line and the generation relative displacement of intersecting plane direction, the gap of rod member and housing is periodically
Change, it is suddenly big or suddenly small, the emphasis that always professional explores is sealed to it.
So far, mainly there are two kinds of shapes of packing seal and sylphon seal to the sealing means of the reciprocal rod member of non-linear
Formula.
（1）Packing seal is also known as contact sealing.It is that a set of flexible seal is installed around reciprocal rod member, should
Seal is in contact with rod member, so as to realize sealing.Seal frequently with potted component be divided into two classes, one is by sealing ring
Natural resiliency deformation produces the sealing ring that radial pressure realizes sealing effectiveness, such as "O"-ring, this special seal, such sealing ring
Need to give certain pretightning force when mounted, therefore, sealing ring has been at deformed state, and easily aging loses bullet quickly
Property, and then sealing effectiveness of having decayed, service life are short；The second is dehiscing to be squeezed to the lip of potted component by pressure medium
Pressure produces the sealing ring that radial load realizes sealing effectiveness, such as Y types, U-shaped, V-shaped seal ring.Such sealing ring size interference is in peace
Space is filled, and then produces pretension radial load, sealing is realized, such sealed advantage is with preferable to different pressure mediums
Compensation ability, can be high pressure resistant, but the lip of sealing ring is dehisced facing to pressure medium, so lip quick abrasion, working life is short.
Packing seal increases the urgent power of seal and rod member sometimes for that can seal up medium or foreign matter, usually using spring, but
It is this to reach the sealing means of sealing effectiveness by increase radial load, rod member and seal friction are added, rod member is accelerated
With the abrasion of seal, and then accelerate the decayed sealing effectiveness and service life of seal.In addition, the resistance to height of packing seal element
Warm nature is poor, and environment temperature rise can sharply increase seal deformation, while can reduce contact, influences sealing effectiveness.
（2）Sylphon seal.It is that one end of bellows is fixed on apparatus casing, the other end is fixed on reciprocal rod member,
Static seal is formed between rod member, bellows is moved with rod member mechanical movement, do not rubbed, while this sealing means also have
There are certain compensation damped stretching, compressed capability.But find in actual use, the antitorque ability of splitting of bellows is poor, close
Envelope moves back and forth speed and is more than 0.1m/s and amplitude more than in 5cm motion processes, easily causes the fatigue rupture of material, influences ripple
The sealing life of line pipe.
A kind of Patent No. 201310324510X, sealing device of multifreedom motion, this kind of seal form belongs to contact
It is sealedly a kind of, have the disadvantage：It is applicable only to rod member and there is a situation where relative displacement at axially or radially single aspect, works as rod member
When doing non-linear reciprocating motion, rod member occurs to swing, vibrate or rock by a relatively large margin in non-radial or axial direction, the sealing device
The compensation ability moved to rod member is limited, and frictional strength between rod member and seal is high, thus add rod member abrasion and
The resistance of motion, while also exacerbating the deformation of seal, sealing effectiveness is poor.
In summary, with device there are many defects in existing encapsulating method, mainly be put by a relatively large margin for existing
When the non-rectilinear for moving, vibrating or rocking moves back and forth rod member and housing seal, poor for applicability, short life, sealing effectiveness is poor.Together
When, the multidirectional swing that is produced during the motion of non-linear reciprocal rod member, vibrate or rock, add rubbing for contact seals and rod member
Intensity is wiped, amount of heat is produced, accelerates the abrasion and aging of seal；When using sylphon seal mode, amplitude is larger
Rod member easily reach bellows torque limit, accelerate bellows torsional fracture, have influence on the service life of potted component, increase
Equipment operating cost.
3rd, the content of the invention
Present invention aims at the problem of above-mentioned various methods are present is solved, move back and forth rod member for non-linear and provide a kind of new
Type encapsulating method and device, its sealing property is reliable, leakage rate is small, abrasion is small, applied widely, is suitable for larger past of amplitude
The sealing in the space between motion rod member and apparatus casing again.
The present invention is adopted the technical scheme that：A kind of air seal of the reciprocal rod member of non-linear, rod member is in equipment
Non-rectilinear reciprocating motion, including sealing base, servo-actuated friction plate, sealing gland are done between housing, sealing base is fixed on equipment shell
On body, described sealing gland is fixed on sealing base, is formed and is existed for servo-actuated friction plate between sealing gland and sealing base
The groove of interior slip, described sealing base and servo-actuated friction plate are provided with the hole passed through for rod member, and rod member inserts in the hole and stretched
Enter enclosure interior, be servo-actuated friction plate and rod member sidepieceIt is seamlessSliding contact, between described sealing base and housing, described recessed
Between servo-actuated friction plate and rod member between groove and servo-actuated friction plate, described, sealing is in close contact.
Groove radius of the present invention is more than on servo-actuated friction plate radius and rod member amplitude sum, described sealing base
The diameter in hole is more than the diameter in hole on servo-actuated friction plate.
Groove of the present invention scribbles molybdenum sulfide lubricating grease with servo-actuated friction plate.
On seal cover board of the present invention, the oil filler point provided with the oiling into groove.
A kind of aeroseal method of the reciprocal rod member of non-linear, it is characterised in that：By servo-actuated friction plate to non-rectilinear
Move back and forth rod member to be sealed, the non-rectilinear that described servo-actuated friction plate eliminates rod member reciprocating generation swings, shaken
Move or rock the negative effect to sealing effectiveness.
The present invention operation principle be：Shell ends are sealed using sealing base first, described sealing base can be retouched
State as " matrix " sealing base, so-called " matrix " sealing base is that one side is plane, is simultaneously concave surface, plane is fixed on housing
On, eliminate the gap of sealing base and housing；Then rod member is sealed by servo-actuated friction plate, eliminates servo-actuated friction plate and rod member
Gap, when rod member is moved back and forth, servo-actuated friction plate is slided on rod member, remains sealing state；Again will by seal cover board
Sealing base is combined together with servo-actuated friction plate, that is, is servo-actuated friction plate and is placed in sealing base concave groove, pass through seal cover board
It is located；Reciprocal rod member drives servo-actuated friction plate to be transported in concave groove when occurring swing, vibrating or rock by frictional force
It is dynamic, eliminate rod member and swing, vibrate or rock the influence to seal, improve the durability and sealing stability of seal.
The plane of " matrix " sealing base of the invention is fixed on apparatus casing, and concave surface passes through bolt phase with seal cover board
Even, groove between the two is servo-actuated friction plate track, is servo-actuated friction plate and is located in track, is servo-actuated the inner ring and reciprocating lever of friction plate
Part is in contact.
Reciprocal rod member of the invention is in motion process, and rod member occurs to swing, vibrates or rock, the gap of rod member and housing 6
Meeting generating period change, apparatus casing end is sealed by " matrix " sealing base, and rod member end is sealed by servo-actuated friction plate 5, is servo-actuated
Friction plate is positioned in matrix groove track by seal cover board, and rod member occurs to swing, when vibrating or rocking, by frictional force drive with
Dynamic friction plate is moved in track, so that eliminate swing, vibrate or rock the influence to seal, whole process seal and bar
Part remains sealing state.
The invention has the characteristics that：
1st, sealing is reliable.The servo-actuated friction plate of the present invention is moved and moved with the reciprocal rod member of non-linear, with reciprocal rod member all the time
The state of close contact is kept, swings, vibrate or rocks on air impervious influence production with the reciprocal rod member of non-linear is eliminated
Raw negative effect.
2nd, sealing part abrasion is small, and service life is long.With the addition of lubricant in servo-actuated friction plate motion guide rail, reduce with
The frictional resistance of dynamic friction plate motion process, the active force needed for being servo-actuated friction plate motion is small, effectively reduces seal
Damage, extends the service life of seal.
3rd, rod member is not frayed.The servo-actuated friction plate inner ring of the present invention is polished to mirror finish, and coefficient of friction is small, sealing
Part activity flexibly, is servo-actuated friction plate inner ring and is adapted with rod member sidepiece shape, and rod member motion band dynamic seal can be moved easily, bar
Part is not frayed.
4th, applicability is high.Seal configuration of the present invention is simple, can be using plastics, ceramics, graphite, carbon steel, stainless steel etc.
Material is made, applied widely, can not only meet and be run under normal temperature state, low temperature or limit low temperature ring are can be suitably used for again
Border, can also run in high temperature environments.
5th, the composite can be widely applied to non-rectilinear move back and forth rod member it is non-radial or axially occur by a relatively large margin swing,
Vibrate or rock the aeroseal of process rod member and body clearance.
4th, illustrate
Fig. 1 apparatus of the present invention schematic diagrames；
Fig. 2 is the sealing schematic diagram of embodiment one of the present invention；
Fig. 3 is the sealing schematic diagram of embodiment two of the present invention；
5th, embodiment
The present invention provides a kind of new sealing device for the reciprocal rod member sealing of non-linear, first using " matrix " sealing base 3
Shell ends are sealed, i.e., the one side of sealing base 3 is plane, is simultaneously concave surface, plane is fixed on housing 6, eliminate sealing base 3
With the gap of housing 6；Then rod member 1 is sealed using servo-actuated friction plate 5, eliminates servo-actuated friction plate 5 and the gap of rod member 1, bar
When part 1 is moved back and forth, servo-actuated friction plate 5 is slided on rod member 1, remains sealing state；Rubbed to reduce rod member 1 with servo-actuated
The abrasion of wiping board 5, the servo-actuated inner ring of friction plate 5 is polished to mirror finish, so as to reduce friction between the two；Pass through sealing again
Sealing base 3 is combined together by cover plate with servo-actuated friction plate 5, that is, is servo-actuated friction plate 5 and is placed in the groove of sealing base matrix 3, lead to
Cross seal cover board 2 to be located, the matrix groove radius of sealing base 3 is more than the servo-actuated radius of friction plate 5 and the amplitude sum of rod member 1；For
Reduce the abrasion of seal, lubricant added into matrix groove track 4 by oil filler 2.1；Reciprocal rod member 1 is being put
When moving, vibrate or rocking, drive servo-actuated friction plate 5 to be moved in concave groove, eliminate swing, vibrate or rock to seal
Influence, extends the service life of seal.
The plane of " matrix " sealing base 3 is fixed on apparatus casing 6, and concave surface is connected with seal cover board 2 by bolt 7,
Concave groove between the two is servo-actuated friction plate track 4；Servo-actuated friction plate 5 is located in track 4, be servo-actuated the inner ring of friction plate 5 with it is past
Compound lever part 1 is in contact.
Reciprocal rod member 1 is in motion process, and rod member 1 occurs to swing, vibrates or rock, and causes the gap of rod member 1 and housing 6
Generating period changes；Apparatus casing end is sealed by " matrix " sealing base 3, and rod member end is sealed by servo-actuated friction plate 5, closure
Servo-actuated friction plate 5 is positioned in matrix groove track 4 by plate 2；When rod member 1 is moved back and forth and swung, vibrates or rocks, rubbing
Wipe in the presence of power, servo-actuated friction plate 5 is slided on rod member 1, and vibrated with rod member 1 or rock the motion in track 4, so as to disappear
Except the influence for swinging, vibrating or rocking to seal, whole process seal remains sealing state with rod member 1.
One of embodiment of the present invention, is shown in Fig. 2.Power set 8 drive rod member 1 to make non-rectilinear reciprocating motion by support 9,
Vertical plane is swung rod member 1 at the center line, and the gap generating period of rod member 1 and housing 6 changes；" matrix " seals base
Seat 3 is fixed on apparatus casing 6, and apparatus casing end is sealed, and the servo-actuated inner ring of friction plate 5 is close on rod member 1, and rod member end is close
Envelope；Then servo-actuated friction plate 5 is positioned in matrix groove track 4 using seal cover board 2；Rod member 1 move back and forth and occur swing,
During vibrating or rocking, servo-actuated friction plate 5 is slided on rod member 1, and with the swing of rod member 1, vibrate or rock in track 4
Motion, so as to eliminate swing, vibrate or rock the influence to seal, whole process seal remains sealing with rod member 1
State.
The two of embodiment of the present invention, see Fig. 3.Power rail 8 drives follower lever 9 back and forth to shake by rod member 1, during this
Rod member 1 makees non-rectilinear reciprocating motion, and vertical plane shakes rod member 1 at the center line, and the gap of rod member 1 and housing 6 occurs
Cyclically-varying；" matrix " sealing base 3 is fixed on apparatus casing 6, and apparatus casing end is sealed, and is servo-actuated the inner ring of friction plate 5
It is close on rod member 1, rod member end is sealed；Then servo-actuated friction plate 5 is positioned in matrix groove track 4 using seal cover board 2；
During rod member 1 is moved back and forth and swung, vibrates or rocks, servo-actuated friction plate 5 is slided on rod member 1, and with rod member 1
Swing, vibrate or rock and moved in track 4, so as to eliminate swing, vibrate or rock the influence to seal, whole process is close
Sealing remains sealing state with rod member 1.
Claims (5)
1. a kind of air seal of the reciprocal rod member of non-linear, rod member does non-rectilinear reciprocating motion between apparatus casing, its
It is characterised by：Including sealing base, servo-actuated friction plate, sealing gland, sealing base is fixed on apparatus casing, described sealing
Gland is fixed on sealing base, groove for being slided including servo-actuated friction plate is formed between sealing gland and sealing base, institute
The sealing base and servo-actuated friction plate stated are provided with the hole passed through for rod member, and rod member inserts in the hole and stretches into enclosure interior, are servo-actuated
Friction plate and rod memberIt is seamlessBetween sliding contact, the groove and servo-actuated friction plate between described sealing base and housing, described,
Between described servo-actuated friction plate and rod member, sealing is in close contact.
2. a kind of air seal of the reciprocal rod member of non-linear according to claim 1, it is characterised in that：Described
The diameter that groove radius is more than hole on servo-actuated friction plate radius and rod member amplitude sum, described sealing base is more than with dynamic friction
The diameter in hole on plate.
3. a kind of air seal of the reciprocal rod member of non-linear according to claim 1 or 2, it is characterised in that：Institute
The groove stated scribbles molybdenum sulfide lubricating grease with servo-actuated friction plate.
4. a kind of air seal of the reciprocal rod member of non-linear according to claim 1 or 2, it is characterised in that：Institute
On the seal cover board stated, the oil filler point provided with the oiling into groove.
5. a kind of a kind of aeroseal method of the reciprocal rod member of non-linear as claimed in claim 1, it is characterised in that：Pass through
Servo-actuated friction plate moves back and forth rod member to non-rectilinear and sealed, and described servo-actuated friction plate eliminates rod member reciprocating production
Raw non-rectilinear swings, vibrates or rock the negative effect to sealing effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384516.4A CN106969146A (en) | 2017-05-26 | 2017-05-26 | The air seal and method of a kind of reciprocal rod member of non-linear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384516.4A CN106969146A (en) | 2017-05-26 | 2017-05-26 | The air seal and method of a kind of reciprocal rod member of non-linear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969146A true CN106969146A (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710384516.4A Pending CN106969146A (en) | 2017-05-26 | 2017-05-26 | The air seal and method of a kind of reciprocal rod member of non-linear |
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| CN (1) | CN106969146A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098441A (en) * | 2017-11-09 | 2018-06-01 | 解家乡 | A kind of environment-friendly type hardware parts cutting device |
| CN111442089A (en) * | 2020-04-24 | 2020-07-24 | 江苏鹏飞集团股份有限公司 | Preheater push rod sealing device and preheater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017572Y2 (en) * | 1980-06-10 | 1985-05-29 | 日本鋼管株式会社 | Seal device for rod for driving grate of garbage incinerator |
| CN101749427A (en) * | 2008-12-04 | 2010-06-23 | 上海通用风机股份有限公司 | Conveniently-detached floating rotary shaft seal |
| CN202597700U (en) * | 2012-06-08 | 2012-12-12 | 伟明环保设备有限公司 | Sealing structure of connecting rod and furnace exhausting chamber |
| CN203548907U (en) * | 2013-11-16 | 2014-04-16 | 黄冈圣嘉高新机电设备有限公司 | Reciprocating shaft sealing device |
| CN203568685U (en) * | 2013-11-20 | 2014-04-30 | 丁立平 | Novel sliding plate framework sealing device for grab bucket product |
| CN205372583U (en) * | 2016-02-17 | 2016-07-06 | 湖南永清机械制造有限公司 | Grate seals wind sealing device |
| CN106090224A (en) * | 2016-07-20 | 2016-11-09 | 中铁工程装备集团有限公司 | A kind of TBM floating type dust prevention system of main driving |
| CN206754369U (en) * | 2017-05-26 | 2017-12-15 | 泰安中意重型工业设备有限公司 | A kind of air seal of the reciprocal rod member of non-linear |
-
2017
- 2017-05-26 CN CN201710384516.4A patent/CN106969146A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017572Y2 (en) * | 1980-06-10 | 1985-05-29 | 日本鋼管株式会社 | Seal device for rod for driving grate of garbage incinerator |
| CN101749427A (en) * | 2008-12-04 | 2010-06-23 | 上海通用风机股份有限公司 | Conveniently-detached floating rotary shaft seal |
| CN202597700U (en) * | 2012-06-08 | 2012-12-12 | 伟明环保设备有限公司 | Sealing structure of connecting rod and furnace exhausting chamber |
| CN203548907U (en) * | 2013-11-16 | 2014-04-16 | 黄冈圣嘉高新机电设备有限公司 | Reciprocating shaft sealing device |
| CN203568685U (en) * | 2013-11-20 | 2014-04-30 | 丁立平 | Novel sliding plate framework sealing device for grab bucket product |
| CN205372583U (en) * | 2016-02-17 | 2016-07-06 | 湖南永清机械制造有限公司 | Grate seals wind sealing device |
| CN106090224A (en) * | 2016-07-20 | 2016-11-09 | 中铁工程装备集团有限公司 | A kind of TBM floating type dust prevention system of main driving |
| CN206754369U (en) * | 2017-05-26 | 2017-12-15 | 泰安中意重型工业设备有限公司 | A kind of air seal of the reciprocal rod member of non-linear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098441A (en) * | 2017-11-09 | 2018-06-01 | 解家乡 | A kind of environment-friendly type hardware parts cutting device |
| CN111442089A (en) * | 2020-04-24 | 2020-07-24 | 江苏鹏飞集团股份有限公司 | Preheater push rod sealing device and preheater |
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Application publication date: 20170721 |