CN206754369U - A kind of air seal of the reciprocal rod member of non-linear - Google Patents
A kind of air seal of the reciprocal rod member of non-linear Download PDFInfo
- Publication number
- CN206754369U CN206754369U CN201720600208.6U CN201720600208U CN206754369U CN 206754369 U CN206754369 U CN 206754369U CN 201720600208 U CN201720600208 U CN 201720600208U CN 206754369 U CN206754369 U CN 206754369U
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- Prior art keywords
- rod member
- servo
- friction plate
- sealing
- actuated friction
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- 238000007789 sealing Methods 0.000 claims abstract description 95
- 210000004907 gland Anatomy 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 10
- 239000011435 rock Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 239000011159 matrix material Substances 0.000 description 16
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of air seal of the reciprocal rod member of non-linear, the sealing being related 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 slided inside for 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 utility model has the characteristics that sealing property is reliable, leakage rate is small, abrasion is small, applied widely.
Description
First, art
The air seal that a kind of sealing property is reliable, leakage rate is small, abrasion is small is the utility model is related to, specifically
It is to be related to one kind to fill up reciprocal rod member and fixed equipment body clearance, prevents excessive close of fixed equipment enclosure interior gas medium
Seal apparatus.
2nd, background technology
According to the movement locus of reciprocal rod member, linear reciprocal motion rod member can be classified as and non-linear moves back and forth
Rod member.So-called linear reciprocal motion rod member refers to that only direction moves back and forth rod member at the center line, and does not have in other directions
There is the motion of displacement, movement locus is straight line；So-called non-linear, which moves back and forth, refers to rod member reciprocal along centerline direction
While motion, the motion of displacement is produced in the plane intersected with center line, movement locus is curve, i.e. reciprocatory movement
Middle 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 also known as contacts 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, easily aging, loses bullet quickly
Property, and then sealing effectiveness of having decayed, service life are short；The second is the lip of potted component is dehisced to squeeze 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
Fill space, and then produce pretension radial load, realize sealing, be the advantages of such sealing have to different pressure mediums it is preferable
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 are short.
Packing seal usually increases the urgent power of seal and rod member sometimes for that can seal up medium or foreign matter 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, accelerates rod member
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, influence 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.
Patent No. 201310324510X, a kind of sealing device of multifreedom motion, this kind of seal form belong to contact
One kind of sealing, shortcoming are：It is applicable only to rod member and relative displacement is present 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
Limited to the compensation ability of rod member motion, frictional strength between rod member and seal is high, so as to add the abrasion of rod member and
The resistance of motion, while the deformation of seal is also exacerbated, 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 that moves, vibrate or rock moves back and forth rod member and housing seal, poor for applicability, short life, sealing effectiveness is poor.Together
When, it is multidirectional caused by the motion of non-linear reciprocal rod member to swing, 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
The utility model purpose is solve the problems, such as that above-mentioned various methods are present, and moving back and forth rod member for non-linear carries
For a kind of novel seal method and apparatus, its sealing property is reliable, leakage rate is small, abrasion is small, applied widely, is suitable for amplitude
The larger sealing for moving back and forth the space between rod member and apparatus casing.
The utility model adopts the technical scheme that：A kind of air seal of the reciprocal rod member of non-linear, rod member exist
Non-rectilinear reciprocating motion, including sealing base, servo-actuated friction plate, sealing gland are done between apparatus casing, sealing base, which is fixed on, to be set
On standby housing, described sealing gland is fixed on sealing base, is formed between sealing gland and sealing base for dynamic friction
The groove that plate slides inside, 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 enclosure interior is stretched into, it is servo-actuated friction plate and rod member sidepieceIt is seamlessSliding contact, between described sealing base and housing, described
Groove and servo-actuated friction plate between, between described servo-actuated friction plate and rod member, sealing be in close contact.
Groove radius described in the utility model is more than 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 on seat.
Groove described in the utility model scribbles molybdenum sulfide lubricating grease with servo-actuated friction plate.
On seal cover board described in the utility model, the oil filler point provided with the oiling into groove.
A kind of aeroseal method of the reciprocal rod member of non-linear, rod member is moved back and forth to non-rectilinear by servo-actuated friction plate
Sealed, described servo-actuated friction plate eliminates non-rectilinear caused by rod member reciprocating and swings, vibrates or rock to close
Seal the negative effect of effect.
Operation principle of the present utility model is：Shell ends are sealed using sealing base first, described sealing base can
To be described as " matrix " sealing base, so-called " matrix " sealing base is that one side is plane, is simultaneously concave surface, plane is fixed on shell
On body, the gap of sealing base and housing is eliminated；Then rod member is sealed by servo-actuated friction plate, eliminates servo-actuated friction plate and rod member
Gap, when rod member moves back and forth, servo-actuated friction plate slides on rod member, remains sealing state；Pass through seal cover board again
Sealing base and servo-actuated friction plate are combined together, i.e., servo-actuated friction plate is placed in sealing base concave groove, passes through closure
Plate is located；Reciprocal rod member drives servo-actuated friction plate in concave groove when swing occurs, vibrates or rocks, by frictional force
Motion, eliminate rod member and swing, vibrate or rock the influence to seal, improve the durability and sealing stability of seal.
The plane of the utility model " matrix " sealing base is fixed on apparatus casing, and concave surface passes through bolt with seal cover board
Be connected, groove between the two is servo-actuated friction plate track, and servo-actuated friction plate be located in track, be servo-actuated the inner ring of friction plate with back and forth
Rod member is in contact.
In motion process, rod member occurs to swing, vibrates or rock the reciprocal rod member of the utility model, rod member and housing 6
Gap meeting generating period change, apparatus casing end are sealed by " matrix " sealing base, and rod member end is sealed by servo-actuated friction plate 5,
Servo-actuated friction plate is positioned in matrix groove track by seal cover board, when rod member occurs swing, vibrates or rock, passes through frictional force band
Dynamic servo-actuated friction plate moves in track, so as to eliminating swing, vibrating or rocking the influence to seal, whole process seal
Sealing state is remained with rod member.
The utility model has the characteristics that：
1st, sealing is reliable.The utility model is servo-actuated friction plate and moves and move with the reciprocal rod member of non-linear, and reciprocal
Rod member remains the state of close contact, has and eliminates the reciprocal rod member swing of non-linear, vibrates or rock to aeroseal
Influence caused by negative effect.
2nd, sealing part abrasion is small, service life length.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 being servo-actuated needed for friction plate motion is small, effectively reduces seal
Damage, extend the service life of seal.
3rd, rod member is not frayed.The utility model is servo-actuated friction plate inner ring and is polished to mirror finish, and coefficient of friction is small,
Flexibly, servo-actuated friction plate inner ring is adapted with rod member sidepiece shape for seal activity, and rod member motion can transport band dynamic seal easily
Dynamic, rod member is not frayed.
4th, applicability is high.The utility model seal configuration is simple, can use plastics, ceramics, graphite, carbon steel, stainless
The materials such as steel are made, applied widely, can not only meet to run under normal temperature state, and and can is applied to low temperature or the limit is low
Warm environment, it can also run in high temperature environments.
5th, the utility model 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 the utility model schematic devices；
Fig. 2 is the sealing schematic diagram of the utility model embodiment one；
Fig. 3 is the sealing schematic diagram of the utility model embodiment two；
5th, embodiment
The utility model provides a kind of new sealing device for the reciprocal rod member sealing of non-linear, close using " matrix " first
Envelope pedestal 3 seals shell ends, i.e., the one side of sealing base 3 is plane, is simultaneously concave surface, and plane is fixed on housing 6, eliminates close
Seal the gap of pedestal 3 and housing 6；Then rod member 1 is sealed using servo-actuated friction plate 5, eliminates servo-actuated friction plate 5 and rod member 1
Gap, when rod member 1 moves back and forth, servo-actuated friction plate 5 slides on rod member 1, remains sealing state；In order to reduce rod member 1
With the abrasion of servo-actuated friction plate 5, the servo-actuated inner ring of friction plate 5 is polished to mirror finish, so as to reduce friction between the two；Again
Sealing base 3 and servo-actuated friction plate 5 are combined together by seal cover board, i.e., servo-actuated friction plate 5 is placed in sealing base matrix 3
In groove, it is located by seal cover board 2, the matrix groove radius of sealing base 3 is more than the servo-actuated radius of friction plate 5 and the amplitude of rod member 1
Sum；In order to reduce the abrasion of seal, lubricant is added into matrix groove track 4 by oil filler 10；Reciprocal rod member 1 is being sent out
When life swings, vibrates or rock, drive servo-actuated friction plate 5 to be moved in concave groove, eliminate swing, vibrate or rock to sealing
The influence of part, extend 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 be located in track 4, the inner ring of servo-actuated friction plate 5 with it is past
Compound lever part 1 is in contact.
In motion process, rod member 1 occurs to swing, vibrates or rock reciprocal rod member 1, 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
In the presence of wiping power, servo-actuated friction plate 5 slides on rod member 1, and vibrates or rock with rod member 1 and moved 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 the utility model embodiment, is shown in Fig. 2.Power set 8 by support 9 drive rod member 1, and to make non-rectilinear reciprocal
Motion, 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 "
Sealing base 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, by bar
Part end seals；Then servo-actuated friction plate 5 is positioned in matrix groove track 4 using seal cover board 2；Rod member 1 moves back and forth concurrently
It is raw swing, vibrate or rock during, servo-actuated friction plate 5 slides on rod member 1, and with the swing of rod member 1, vibrate or rock
Moved in track 4, so as to eliminating swing, vibrating or rocking the influence to seal, whole process seal is protected all the time with rod member 1
Hold sealing state.
The two of the utility model embodiment, see Fig. 3.Power rail 8 drives follower lever 9 back and forth to shake by rod member 1, this mistake
Rod member 1 makees non-rectilinear reciprocating motion in journey, and vertical plane shakes rod member 1 at the center line, the gap of rod member 1 and housing 6
Generating period changes；" matrix " sealing base 3 is fixed on apparatus casing 6, and apparatus casing end is sealed, and is servo-actuated friction plate 5
Inner ring is close on rod member 1, and rod member end is sealed；Then servo-actuated friction plate 5 is positioned at by matrix groove track using seal cover board 2
In 4；During rod member 1 is moved back and forth and swung, vibrates or rocks, servo-actuated friction plate 5 slides on rod member 1, and with bar
The swing of part 1, vibrate or rock and moved in track 4, so as to eliminating swing, vibrating or rocking the influence to seal, entirely
Process seal remains sealing state with rod member 1.
Claims (4)
1. a kind of air seal of the reciprocal rod member of non-linear, rod member do 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, the groove slided inside for servo-actuated friction plate, institute are formed between sealing gland and sealing base
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 seamlessSliding contact, 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.
A kind of 2. air seal of the reciprocal rod member of non-linear according to claim 1, it is characterised in that：Described
Groove radius, which is more than, is servo-actuated friction plate radius and rod member amplitude sum, and the diameter in hole is more than with dynamic friction on described sealing base
The diameter in hole on plate.
A kind of 3. 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.
A kind of 4. 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600208.6U CN206754369U (en) | 2017-05-26 | 2017-05-26 | A kind of air seal of the reciprocal rod member of non-linear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720600208.6U CN206754369U (en) | 2017-05-26 | 2017-05-26 | A kind of air seal of the reciprocal rod member of non-linear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754369U true CN206754369U (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720600208.6U Active CN206754369U (en) | 2017-05-26 | 2017-05-26 | A kind of air seal of the reciprocal rod member of non-linear |
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| Country | Link |
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| CN (1) | CN206754369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969146A (en) * | 2017-05-26 | 2017-07-21 | 泰安中意重型工业设备有限公司 | The air seal and method of a kind of reciprocal rod member of non-linear |
| CN110672243A (en) * | 2019-09-29 | 2020-01-10 | 北京动力机械研究所 | Testing device capable of adjusting air inlet and exhaust high-temperature dynamic seal friction force |
-
2017
- 2017-05-26 CN CN201720600208.6U patent/CN206754369U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969146A (en) * | 2017-05-26 | 2017-07-21 | 泰安中意重型工业设备有限公司 | The air seal and method of a kind of reciprocal rod member of non-linear |
| CN110672243A (en) * | 2019-09-29 | 2020-01-10 | 北京动力机械研究所 | Testing device capable of adjusting air inlet and exhaust high-temperature dynamic seal friction force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An air sealing device for non-linear reciprocating rod Effective date of registration: 20210809 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT Co.,Ltd. Registration number: Y2021980007462 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210813 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT Co.,Ltd. Registration number: Y2021980007462 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An air sealing device for non-linear reciprocating rod Effective date of registration: 20210817 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT Co.,Ltd. Registration number: Y2021980007855 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220901 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT CO.,LTD. Registration number: Y2021980007855 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Denomination of utility model: An Air Sealing Device for Non linear Reciprocating Rod Effective date of registration: 20220923 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT CO.,LTD. Registration number: Y2022980016018 |
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Date of cancellation: 20230925 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT CO.,LTD. Registration number: Y2022980016018 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Denomination of utility model: An air sealing device for non linear reciprocating rod components Effective date of registration: 20231011 Granted publication date: 20171215 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAI'AN ZHONGYI HEAVY INDUSTRIAL EQUIPMENT CO.,LTD. Registration number: Y2023980060701 |
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