CN207879601U - A kind of sealing device of screw compressor - Google Patents
A kind of sealing device of screw compressor Download PDFInfo
- Publication number
- CN207879601U CN207879601U CN201820213267.2U CN201820213267U CN207879601U CN 207879601 U CN207879601 U CN 207879601U CN 201820213267 U CN201820213267 U CN 201820213267U CN 207879601 U CN207879601 U CN 207879601U
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- sealing ring
- movable orbiting
- groove
- orbiting scroll
- fixed scroll
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Abstract
A kind of sealing device of screw compressor, the screw compressor includes movable orbiting scroll and fixed scroll, the sealing device is set between movable orbiting scroll and fixed scroll, the sealing device includes sealing ring and gasket, the sealing ring includes movable orbiting scroll sealing ring and fixed scroll sealing ring, the gasket includes movable orbiting scroll gasket and fixed scroll gasket, the setting of sealing ring improves the sealing performance of whirlpool disk radial direction, the setting of gasket avoids the contact wear of sealing ring and whirlpool disk, screw compressor only needs to replace gasket and sealing ring after a period of use, greatly reduce the maintenance cost of screw compressor.
Description
Technical field
The utility model is related to screw compressor fields, and in particular to a kind of sealing device of screw compressor.
Background technology
Screw compressor is widely used in automobile since it has many advantages, such as that energy-efficient, noise is relatively low, operates steadily
In industry.Screw compressor is mainly formed by the dynamic and static vortex of two digamma function equation scrollworks is mutually ratcheting.Air-breathing, compression,
During exhaust work, fixed scroll is fixed on the rack, and movable orbiting scroll is driven by bent axle and restricted by anti-rotation mechanism, surrounds quiet whirlpool
The Plane Rotation of very little radius is done at disk basic circle center, and gas sucks the periphery of fixed scroll, and with the rotation of eccentric shaft, gas is dynamic
Quiet disk engagement is closed gradually to be compressed in several crescent compression chambers formed, then by the axial hole of fixed scroll central module
Continuously send.
The leakproofness of the dynamic and static whirlpool disk of screw compressor plays a crucial role the performance of screw compressor.And
The sealing structure performance of dynamic and static whirlpool disk is general in the prior art, and screw compressor worked after a period of time, and sealing strip is easy mill
Damage, causes sealing performance to decline, to directly affect the working performance of screw compressor.
Utility model content
Based on the problem and deficiency described in background technology, it is strong and not easy to wear that the utility model is intended to provide a kind of leakproofness
Screw compressor sealing device.
In order to achieve the above objectives, the utility model uses following technical scheme：
A kind of sealing device of screw compressor, the screw compressor include movable orbiting scroll and fixed scroll, the sealing dress
It is arranged between movable orbiting scroll and fixed scroll, the sealing device includes sealing ring and gasket, and the sealing ring includes that movable orbiting scroll is close
The wrap tip face of seal and fixed scroll sealing ring, the movable orbiting scroll offers the first groove, and the movable orbiting scroll seals ring gap
It is set in first groove, movable orbiting scroll sealing ring bottom is provided with the first magnet, the first bottom portion of groove setting
There is the second magnet, first magnet and the second magnet are oppositely arranged and magnetic identical, set that there are two pressures in first groove
Contracting spring, first groove two side offer spring sliding slot respectively, and the compressed spring is respectively arranged at movable orbiting scroll sealing
Both sides are enclosed, the compressed spring side is fixedly connected with movable orbiting scroll sealing ring, and the other side is slideably positioned in spring sliding slot.
Preferably, the wrap tip face of the fixed scroll offers the second groove, the fixed scroll sealing ring gap setting
In in second groove, fixed scroll sealing ring bottom is provided with third magnet, and second bottom portion of groove is provided with
Four magnet, the third magnet and the 4th magnet are oppositely arranged and magnetic identical, set that there are two compress bullet in second groove
Spring, second groove two side offer spring sliding slot respectively, and the compressed spring is respectively arranged at fixed scroll sealing ring two
Side, the compressed spring side are fixedly connected with fixed scroll sealing ring, and the other side is slideably positioned in spring sliding slot.
Preferably, the gasket includes movable orbiting scroll gasket and fixed scroll gasket, and the movable orbiting scroll gasket is set to movable orbiting scroll
Interior, the fixed scroll gasket is set in fixed scroll；With after fixed scroll assembly, the fixed scroll sealing ring is resisted against dynamic movable orbiting scroll
Whirlpool disk gasket surface, the movable orbiting scroll sealing ring are resisted against fixed scroll gasket surface, after so that movable orbiting scroll is assembled with fixed scroll
Cavity seal.
Preferably, movable orbiting scroll sealing ring end offers third groove, is equipped in the third groove and third
Identical first sealing ring of groove shapes；Fixed scroll sealing ring end offers the 4th groove, the 4th groove content
It is equipped with the second sealing ring identical with the 4th groove shapes；The first sealing ring skin-friction coefficient is less than movable orbiting scroll sealing ring
Skin-friction coefficient, the second sealing ring skin-friction coefficient be less than fixed scroll sealing ring skin-friction coefficient, described first
Sealing ring skin-friction coefficient is less than the second sealing ring skin-friction coefficient.
The utility model has the beneficial effects that：
1, sealing ring gap setting is in groove, and high pressure gas generates atmospheric pressure sealing ring is tight to sealing ring in compression chamber
Recess sidewall is pasted, to effectively raise the sealing performance of whirlpool disk radial direction.
2, the setting of sealing ring both sides compressed spring may make screw compressor sealing ring after being stopped to automatically return to
Initial position realizes the self-return function of sealing ring, avoids influence caused by due to sealing ring misplaces.
3, sealing ring bottom and the homopolar magnet of bottom portion of groove setting can generate repulsive force to make outside sealing ring and gasket
Surface fits closely, to improve whirlpool dish axle to sealing performance.Simultaneously because sealing ring is not contacted with groove, it can be effective
Reduce the abrasion between sealing ring and groove.
4, recess sidewall opens up spring sliding slot and is damaged caused by so as to be effectively prevented from compressed spring due to surprisingly bending.
Description of the drawings
Fig. 1 is the utility model screw compressor partial schematic diagram；
Fig. 2 is the utility model whirlpool disk sealed structural representation；
Fig. 3 is the utility model movable orbiting scroll sealing structure partial schematic diagram；
Fig. 4 is the utility model fixed scroll sealing structure partial schematic diagram；
Movable orbiting scroll sealing structure partial schematic diagram when Fig. 5 is the work of the utility model screw compressor；
Fixed scroll sealing structure partial schematic diagram when Fig. 6 is the work of the utility model screw compressor；
Fig. 7 is the utility model movable orbiting scroll sealing ring sectional view；
Fig. 8 is the utility model fixed scroll sealing ring sectional view.
Reference sign：Movable orbiting scroll 1, fixed scroll 2, movable orbiting scroll gasket 3, fixed scroll gasket 4, air inlet 5, air bleeding valve 6,
Exhaust outlet 7, movable orbiting scroll sealing ring 10, fixed scroll sealing ring 11, the first sealing ring 12, compressed spring 13, the first magnet 14, second
Magnet 15, spring sliding slot 16, the second groove 17, the first groove 18, the 4th magnet 19, third magnet 20, the second sealing ring 21,
Three grooves 22, the 4th groove 23.
Specific implementation mode
The utility model is further described below in conjunction with the drawings and specific embodiments, but present embodiment is simultaneously
It is not limited to content below, can arbitrarily be changed and implement in the range of the purport of lossless the utility model.
As shown in Figure 1,1 side wall of movable orbiting scroll of the utility model screw compressor offers air inlet 5,1 top of movable orbiting scroll
Exhaust outlet 9 is offered, air bleeding valve 8 is fixedly connected by screw with 1 top of movable orbiting scroll, and the air bleeding valve 8 is arranged on exhaust outlet 9
Side.Movable orbiting scroll 1 is enclosed compression chamber with fixed scroll 2, and the air inlet 5 is connected to low-pressure chamber, the exhaust outlet 9 and high pressure
Chamber, low pressure chamber indoor gas are flowed into through air inlet 5 in compression chamber, and gas forms high pressure gas after compression, and by being vented
Mouthful 9 rows are to high-pressure chamber.
As shown in figures 2-6, sealing device is provided between the movable orbiting scroll 1 and fixed scroll 2, the sealing device includes close
Seal and gasket, the sealing ring include movable orbiting scroll sealing ring 10 and fixed scroll sealing ring 11, the wrap tip of the movable orbiting scroll 1
Face offers the first groove 18 along molded line, and 10 gap setting of movable orbiting scroll sealing ring is described dynamic in first groove 18
Disk sealing ring 10 bottom in whirlpool is provided with the first magnet 14, and 18 bottom of the first groove is provided with the second magnet 15, and described first
Magnet 14 and the second magnet 15 are oppositely arranged and magnetic identical (being all positive or negative pole), set in first groove 18 there are two
Compressed spring 13,18 two side of the first groove offer spring sliding slot 16 respectively, and the compressed spring 13 is respectively arranged at
10 both sides of movable orbiting scroll sealing ring, 13 side of the compressed spring are fixedly connected with movable orbiting scroll sealing ring 10, another Slideslip setting
In in spring sliding slot 16.
The wrap tip face of the fixed scroll 2 offers the second groove 17,11 gap setting of fixed scroll sealing ring in
In second groove 17,11 bottom of fixed scroll sealing ring is provided with third magnet 20, and 17 bottom of the second groove is set
It is equipped with the 4th magnet 19,20 and the 4th magnet 19 of the third magnet is oppositely arranged and magnetism identical (being all positive or negative pole),
It being set in second groove 17 there are two compressed spring 13,17 two side of the second groove offers spring sliding slot 16 respectively,
The compressed spring 13 is respectively arranged at 11 both sides of fixed scroll sealing ring, 13 side of the compressed spring and fixed scroll sealing ring 11
It is fixedly connected, the other side is slideably positioned in spring sliding slot 16.
The gasket includes movable orbiting scroll gasket 3 and fixed scroll gasket 4, and the movable orbiting scroll gasket 3 is set in movable orbiting scroll 1,
The fixed scroll gasket 4 is set in fixed scroll 2；After movable orbiting scroll 1 and fixed scroll 2 are assembled, the fixed scroll sealing ring 11 against
In 3 surface of movable orbiting scroll gasket, the movable orbiting scroll sealing ring 10 is resisted against 4 surface of fixed scroll gasket, to make movable orbiting scroll 1 and quiet whirlpool
Disk 2 assembles rear chamber's sealing.
Due to gas after entering the compression chamber that movable orbiting scroll 1 and fixed scroll 2 are enclosed as the volume of compression chamber reduces
And be compressed to form high pressure gas, therefore the high pressure gas in compression chamber to gap setting in the first groove 18 and the second groove 17
Interior movable orbiting scroll sealing ring 10 and fixed scroll sealing ring 11 generate atmospheric pressure, to seal movable orbiting scroll sealing ring 10 and fixed scroll
Circle 11 is pushed into the side wall of the first groove 18 and the second groove 17.At this time due to the effect of atmospheric pressure so that the side of sealing ring and groove
Wall fits closely, to improve the sealing performance of whirlpool disk radial direction.
And since sealing ring by atmospheric pressure pushes recess sidewall to, sealing ring is bonded the compressed spring of side with recess sidewall at this time
13 are in confined state, and after screw compressor is stopped, atmospheric pressure disappears, and the elastic force of compressed spring 13 pushes close at this time
Seal returns to initial position, to realize the self-return function of sealing ring.
The magnet of sealing ring bottom setting is identical as the magnet poles that bottom portion of groove is arranged, and homopolar magnet generates repulsive force,
Push sealing ring to gasket outer surface.At this time since the effect of repulsive force makes sealing ring be fitted closely with gasket outer surface, from
And improve whirlpool dish axle to sealing performance.
The side wall of first groove, 18 and second groove 17 offers spring sliding slot 16,13 1 Slideslip of compressed spring
It is set in spring sliding slot 16, when movable orbiting scroll sealing ring 10 and fixed scroll sealing ring 11 are generated due to the effect of magnet repulsive force
When axial movement, compressed spring 13 slides axially with the axial movement of sealing ring in spring sliding slot, so as to avoid pressure
The bending of contracting spring, the setting of spring sliding slot can be effectively prevented from compressed spring and be damaged caused by due to surprisingly bending.
The gasket includes movable orbiting scroll gasket 3 and fixed scroll gasket 4, and the movable orbiting scroll gasket 3 is set in movable orbiting scroll 1,
The fixed scroll gasket 4 is set in fixed scroll 2；After movable orbiting scroll 1 and fixed scroll 2 are assembled, the fixed scroll sealing ring 11 against
In 3 surface of movable orbiting scroll gasket, the movable orbiting scroll sealing ring 10 is resisted against 4 surface of fixed scroll gasket, to make movable orbiting scroll 1 and quiet whirlpool
Disk 2 assembles rear chamber's sealing.The setting of gasket avoids the contact wear of sealing ring and whirlpool disk, when screw compressor uses one section
Between after only need to replace gasket and sealing ring, greatly reduce the maintenance cost of screw compressor.
As Figure 7-8,10 end of movable orbiting scroll sealing ring offers third groove 22,22 content of third groove
It is equipped with the first sealing ring 12 identical with 22 shape of third groove；11 end of fixed scroll sealing ring offers the 4th groove
23, the second sealing ring 21 identical with 23 shape of the 4th groove is equipped in the 4th groove 23；First sealing ring 12
Skin-friction coefficient is less than 10 skin-friction coefficient of movable orbiting scroll sealing ring, and 21 skin-friction coefficient of the second sealing ring is less than quiet
11 skin-friction coefficient of whirlpool disk sealing ring, 12 skin-friction coefficient of the first sealing ring are less than 21 mantle friction of the second sealing ring
Coefficient.
Since the friction coefficient of the first sealing ring 12 and the second sealing ring 21 is close less than movable orbiting scroll sealing ring 10 and fixed scroll
The friction coefficient of seal 11, therefore frictional force when movable orbiting scroll sealing ring and fixed scroll sealing ring are contacted with gasket can be reduced, make
Air-tightness can both have been ensured simultaneously and can also improve the service life of sealing ring and gasket by obtaining sealing ring and gasket.And the first sealing
The friction coefficient setting that the friction coefficient of circle 12 is less than the second sealing ring 21 can be effectively reduced fixed scroll gasket 4 and movable orbiting scroll
Sealing ring is due to the abrasion that high pressure gas acts on and generates.
The utility model is described in detail above, its object is to allow the personage for being familiar with this field technology can be much of that
It solves the content of the utility model and is implemented, the scope of protection of the utility model can not be limited with this, it is all according to this practicality
Equivalent change or modification made by novel Spirit Essence should all cover within the protection scope of the present utility model.
Claims (4)
1. a kind of sealing device of screw compressor, the screw compressor includes movable orbiting scroll (1) and fixed scroll (2), described close
Seal apparatus is set between movable orbiting scroll (1) and fixed scroll (2), it is characterised in that：The sealing device includes sealing ring and gasket, institute
It includes movable orbiting scroll sealing ring (10) and fixed scroll sealing ring (11) to state sealing ring, and the wrap tip face of the movable orbiting scroll (1) opens up
There is the first groove (18), for movable orbiting scroll sealing ring (10) gap setting in first groove (18), the movable orbiting scroll is close
Seal (10) bottom is provided with the first magnet (14), and the first groove (18) bottom is provided with the second magnet (15), and described
One magnet (14) is oppositely arranged and magnetic identical with the second magnet (15), sets that there are two compressed springs in first groove (18)
(13), the first groove (18) two side offers spring sliding slot (16) respectively, and the compressed spring (13) is respectively arranged at
Movable orbiting scroll sealing ring (10) both sides, compressed spring (13) side are fixedly connected with movable orbiting scroll sealing ring (10), another sideslip
It is dynamic to be set in spring sliding slot (16).
2. the sealing device of screw compressor according to claim 1, it is characterised in that：The scrollwork top of the fixed scroll (2)
End face offers the second groove (17), and fixed scroll sealing ring (11) gap setting is described in second groove (17)
Fixed scroll sealing ring (11) bottom is provided with third magnet (20), and the second groove (17) bottom is provided with the 4th magnet
(19), the third magnet (20) is oppositely arranged with the 4th magnet (19) and magnetism is identical, is equipped in second groove (17)
Two compressed springs (13), the second groove (17) two side offer spring sliding slot (16), the compressed spring respectively
(13) fixed scroll sealing ring (11) both sides are respectively arranged at, compressed spring (13) side is fixed with fixed scroll sealing ring (11)
Connection, the other side are slideably positioned in spring sliding slot (16).
3. the sealing device of screw compressor according to claim 1, it is characterised in that：The gasket includes movable orbiting scroll gasket
(3) and fixed scroll gasket (4), the movable orbiting scroll gasket (3) are set in movable orbiting scroll (1), and the fixed scroll gasket (4) is set to
In fixed scroll (2)；For movable orbiting scroll (1) with after fixed scroll (2) assembly, the fixed scroll sealing ring (11) is resisted against movable orbiting scroll gasket
(3) surface, the movable orbiting scroll sealing ring (10) are resisted against fixed scroll gasket (4) surface, to make movable orbiting scroll (1) and fixed scroll
(2) assembly rear chamber sealing.
4. the sealing device of screw compressor according to claim 1, it is characterised in that：Movable orbiting scroll sealing ring (10) end
Portion offers third groove (22), and the first sealing identical with third groove (22) shape is equipped in the third groove (22)
It encloses (12)；Fixed scroll sealing ring (11) end offers the 4th groove (23), be equipped in the 4th groove (23) with
Identical second sealing ring (21) of 4th groove (23) shape；First sealing ring (12) skin-friction coefficient is less than movable orbiting scroll
Sealing ring (10) skin-friction coefficient, the second sealing ring (21) skin-friction coefficient are less than fixed scroll sealing ring (11) surface
Friction coefficient, the first sealing ring (12) skin-friction coefficient are less than the second sealing ring (21) skin-friction coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820213267.2U CN207879601U (en) | 2018-02-07 | 2018-02-07 | A kind of sealing device of screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820213267.2U CN207879601U (en) | 2018-02-07 | 2018-02-07 | A kind of sealing device of screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207879601U true CN207879601U (en) | 2018-09-18 |
Family
ID=63510199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820213267.2U Active CN207879601U (en) | 2018-02-07 | 2018-02-07 | A kind of sealing device of screw compressor |
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| Country | Link |
|---|---|
| CN (1) | CN207879601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278204A (en) * | 2018-02-07 | 2018-07-13 | 宁波汇峰聚威科技股份有限公司 | A kind of sealing device of screw compressor |
-
2018
- 2018-02-07 CN CN201820213267.2U patent/CN207879601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278204A (en) * | 2018-02-07 | 2018-07-13 | 宁波汇峰聚威科技股份有限公司 | A kind of sealing device of screw compressor |
| CN108278204B (en) * | 2018-02-07 | 2023-12-19 | 宁波汇峰聚威科技股份有限公司 | Sealing device of vortex compressor |
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