CN205669580U - Axle sealing structure and compressor - Google Patents
Axle sealing structure and compressor Download PDFInfo
- Publication number
- CN205669580U CN205669580U CN201620540510.2U CN201620540510U CN205669580U CN 205669580 U CN205669580 U CN 205669580U CN 201620540510 U CN201620540510 U CN 201620540510U CN 205669580 U CN205669580 U CN 205669580U
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- China
- Prior art keywords
- sealing
- axle
- groove
- support
- end cap
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Abstract
This utility model relates to a kind of axle sealing structure and compressor, and wherein, axle sealing structure includes that axle, support and end cap, described end cap are arranged at the end of described support, and described axle is rotatablely arranged at the described end of described support and through described end cap；One sealing member arranges on the shaft and is adjacent to the described end of described support, first sealing of described sealing member is arranged in the first groove, and described first groove is arranged on one of the described end of described support and described end cap or is across between described end cap and the described end of described support；Second sealing of described sealing member is located between described axle and described support.This utility model is capable of between support and end cap, sealing between axle and support, improves sealing effectiveness.
Description
Technical field
This utility model relates to a kind of sealing structure, particularly relates to a kind of axle sealing structure and compressor.
Background technology
In electric vehicle scroll compressor structure, in order to realize the floating of orbiter, draw to internal stent discharge chamber
Entering intermediate pressure, the effect of sealing is chamber will to be pressed in compressor to separate with suction muffler, prior art by axle and support it
Between U-shaped sealing ring is set, sealing ring relies on turnup structure, pressure differential, the machining accuracy of part jointly to act on realization and seal, and seals
Although the upper end of circle is provided with back-up ring, it is possible to prevent the upper and lower play of sealing ring, but sealing effectiveness is poor.And above-mentioned sealing ring
Motion mode is unstable, and sealing ring rotates together such as axle, it is also possible to transfixion, so causes sealing ring and compressor
Friction between parts changes, and when sealing ring rotates with axle, the area that CONTACT WITH FRICTION occurs is big, increases
The power consumption of complete machine, the power consumption that sealing ring is different simultaneously motion mode also results in complete machine is unstable, additionally this kind of sealing side
Formula is high to the requirement on machining accuracy of part.
Utility model content
The purpose of this utility model is to propose a kind of axle sealing structure and compressor, and it can improve sealing effectiveness.
For achieving the above object, this utility model provides a kind of axle sealing structure, and it includes axle, support and end cap, institute
Stating end cap and be arranged at the end of described support, described axle is rotatablely arranged at the described end of described support and through described
End cap；One sealing member arranges on the shaft and is adjacent to the described end of described support, the first sealing of described sealing member
Being arranged in the first groove, described first groove is arranged on one of the described end of described support and described end cap or is across
Between described end cap and the described end of described support；Second sealing of described sealing member be located at described axle and described support it
Between.
One, preferably or in alternative embodiment, the axial dimension of described first sealing is axial more than described first groove
Size, so that described first sealing tight fit is located at described first groove, described first sealing is first recessed relative to described
Groove keeps static.
One preferably or in alternative embodiment, engage by arranging between described first sealing with described second sealing
Toothing connects, and described second sealing can rotate with described axle.
One, preferably or in alternative embodiment, the axial dimension of described first sealing is axial less than described first groove
Size, described first sealing is provided with the 3rd groove near the wall of described end cap, when the pressure of described first sealing both sides
Difference is more than or equal to the combining ability between described second sealing and described axle, and described first sealing is close to described first groove
Wall, and relative to described first groove keep static.
One, preferably or in alternative embodiment, the axial dimension of described first sealing is axial less than described first groove
Size, described first sealing is provided with the 3rd groove near the wall of described end cap, when the pressure of described first sealing both sides
Difference is less than the combining ability between described second sealing and described axle, and described first sealing is relative to described first groove fortune
Dynamic.
One, preferably or in alternative embodiment, it is recessed that the wall relative with described axle of described second sealing is provided with second
Groove.
One, preferably or in alternative embodiment, described first sealing is wholely set with described second sealing.
One, preferably or in alternative embodiment, the parts that described first sealing is wholely set with described second sealing are
L-type sealing ring.
One, preferably or in alternative embodiment, the internal face of described second sealing is fitted with described sealing, and described the
Between outside wall surface and the described support of two sealings, there is gap.
For achieving the above object, this utility model additionally provides a kind of compressor, and it includes in any of the above-described embodiment
Axle sealing structure.
Based on technique scheme, this utility model at least has the advantages that
The axle sealing structure that this utility model provides, the first sealing of sealing member is located at the first groove, it is possible to support
And realizing between end cap sealing, the second sealing of sealing member is located between axle and support, it is possible to realize between countershaft and support
Seal, improve sealing effectiveness.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that of the present utility model improper
Limit.In the accompanying drawings:
The axle sealing structure installment state schematic diagram that Fig. 1 provides for this utility model.
Structure one close-up schematic view of the axle sealing structure that Fig. 2 provides for this utility model.
Structure two close-up schematic view of the axle sealing structure that Fig. 3 provides for this utility model.
Structure three close-up schematic view of the axle sealing structure that Fig. 4 provides for this utility model.
Structure four close-up schematic view of the axle sealing structure that Fig. 5 provides for this utility model.
Label in accompanying drawing:
1-axle；2-support；3-end cap；4-the first groove；The first annular groove of 41-；42-the second cannelure；5-first seals
Portion；6-the second sealing；7-the second groove；8-the 3rd groove；9-meshing teeth；10-bearing；11-gasket seal.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in embodiment is carried out clear, complete
Ground describes.Obviously, described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.
Based on embodiment of the present utility model, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There are other embodiments, broadly fall into the scope of this utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", "front", "rear",
The orientation of the instruction such as "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " or position relationship are for based on accompanying drawing institute
The orientation shown or position relationship, be for only for ease of description this utility model and simplify description rather than instruction or hint indication
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The restriction of novel protected scope.
It should be understood that in description of the present utility model, " axially " refers to the axis direction along axle 1.
As it is shown in figure 1, the illustrative examples of the axle sealing structure installment state provided for this utility model, in this signal
In property embodiment, axle sealing structure includes that axle 1, support 2 and end cap 3, end cap 3 are arranged at the end of support 2, and axle 1 is rotationally
It is arranged at the end of support 2 and through end cap 3, a sealing member is arranged on axle 1 and is adjacent to the end of support 2, sealing member
The first sealing 5 be arranged in the first groove 4, one of the first groove 4 end and end cap 3 of being arranged on support 2 or across
Between the end of end cap 3 and support 2；Second sealing 6 of sealing member is located between axle 1 and support 2.Sealing member uses and arranges
First sealing 5 and the form of the second sealing 6, it is possible to make to realize between support 2 and end cap 3 sealing, make axle 1 and support 2 it
Between realize seal, improve sealing effectiveness.
Further, the radial dimension of the second sealing 6 is less than the radial clearance size between axle 1 and support 2, and second is close
The internal face in envelope portion 6 fits tightly in the outside wall surface of axle 1, it is achieved seal, and has between outside wall surface and the support 2 of the second sealing 6
There is gap.
In above-mentioned illustrative examples, the first groove 4 can be arranged on the end of support 2, it is also possible to is arranged on end cap 3
On, or, the first groove 4 can also be across between the end of end cap 3 and support 2.Wherein, the first groove 4 is across end cap 3
And between the end of support 2, it is specifically as follows: as in figure 2 it is shown, the end that end cap 3 coordinates with support 2 can be provided with first annular
Groove 41, the end that support 2 coordinates with end cap 3 can be provided with the second cannelure 42, first annular groove 41 and the second cannelure 42 shape
Becoming the first groove 4, be used for arranging the first sealing 5 in the first groove 4, the gap between support 2 and axle 1 is provided with the second sealing
6.Use this kind of sealing means, the center of the second cannelure 42 of the axle centre bore that the axle 1 in support 2 is passed and support 2
Axiality between hole is less demanding, and the roughness requirements for end cap 3 end face is the highest, therefore, reduces the processing of part
Difficulty and machining accuracy.
One, preferably or in alternative embodiment, the end face that end cap 3 contacts with support 2 all offers groove, therebetween also
Gasket seal 11 can be set, and be bolted.During compressor operating, in support 2 bosom pressed gas
The refrigeration oil continuous lubrication and seal part carried, gas pressure inside and outside for support 2 can be separated by sealing member.
Based on any of the above-described technical scheme, axle sealing structure can be specific as follows to have various embodiments form:
As in figure 2 it is shown, the first embodiment of axle sealing structure: the first sealing 5 of sealing member and the second sealing 6 one
Arrange.The axial dimension of the first sealing 5 is much larger than the axial dimension of the first groove 4, it is possible to ensure that end cap 3 is locked with support 2
After Gu Ding, the first sealing 5 tight fit is located in the first groove 4；Second sealing 6 is located at the gap between axle 1 and support 2.
And the power that closely cooperates that first between sealing 5 and the first groove 4 is more than the combining ability between the second sealing 6 and axle 1, at axle
Under 1 state rotated, sealing member will not rotate along with axle 1, and the first sealing 5 is static relative to the first groove 4.This structure good
Place is in compressor motor process, and the first sealing 5 and the second sealing 6 keep quiet relative to support 2 and end cap 3 always
Only, the inner surface of the only second sealing 6 and axle 1 outer surface generation CONTACT WITH FRICTION, reduce the mill between sealing member and support 2
Damage.Meanwhile, this kind of structure is less demanding to the axiality of the roughness on support 2 surface and the axially bored line of support 2, reduces and adds
Work precision.
The axle sealing structure that first embodiment provides keeps during realizing sealing part works by the dimensional fits of part
Static, reduce friction area.
As it is shown on figure 3, the second embodiment of axle sealing structure: the first sealing 5 of sealing member and the second sealing 6 one
Arrange.The axial dimension of the first sealing 5 is much larger than the axial dimension of the first groove 4, it is possible to ensure that end cap 3 is locked with support 2
After Gu Ding, the first sealing 5 tight fit is located at the first groove 4；Second sealing 6 is located at the gap between axle 1 and support 2, the
Two sealings 6 are provided with the second groove 7 with the wall of axle 1 laminating, form intermediate pressure between the second sealing 6 and support 2, in
Between pressure effect under the inner surface of the second sealing 6 is adjacent to the outer surface of axle 1, but due to the first sealing 5
Axial dimension is much larger than the axial dimension of the first groove 4, and the power of closely cooperating between the first sealing 5 and the first groove 4 is more than
Combining ability between second sealing 6 and axle 1, when axle 1 rotates, sealing member still will not rotate along with axle 1, and first
Sealing 5 is static relative to the first groove 4.The wall fitted at the second sealing 6 and axle 1 is provided with the second groove 7 can be strengthened
Sealing effectiveness between axle 1 and sealing member, and can reduce and contact friction area between axle 1 with the second sealing 6.
As can be seen here, in above-mentioned first embodiment and the second embodiment, under axle 1 rotary state, the first sealing 5 is tight
Coordinate and be located at the first groove 4, and keep static relative to the first groove 4, it may be assumed that relative first groove 4 of the first sealing 5, end cap 3
Static with support 2, there is not CONTACT WITH FRICTION with support 2 and end cap 3 in sealing member, outside the inner surface of the only second sealing 6 is with axle 1
There is CONTACT WITH FRICTION in surface, decreases CONTACT WITH FRICTION area, reduces friction power loss, and CONTACT WITH FRICTION area can be made stable,
And then the power consumption of complete machine can be made to stablize.
As shown in Figure 4, the 3rd embodiment of axle sealing structure: the first sealing 5 is wholely set with the second sealing 6.The
The axial dimension of one sealing 5 less than the axial dimension of the first groove 4, end cap 3 and support 2 be locked after the first sealing 5
And matched in clearance between the first groove 4, the second sealing 6 is located at the gap between axle 1 and support 2.First sealing 5 is near end
The wall of lid 3 is provided with the 3rd groove 8, during compressor operating, forms intermediate pressure between the first sealing 5 and support 2, in
Between pressure act on the first sealing 5, cause the first sealing 5 to deform, simultaneously extruding the 3rd groove 8, close first
The end face making the first sealing 5 under the effect of envelope portion 5 both sides pressure reduction is tightly attached on the end face of end cap 3.
When the pressure reduction of the first sealing 5 both sides is more than or equal to the combining ability between the second sealing 6 and axle 1, it is possible to ensure
First sealing 5 tight fit is located at the first groove 4, and sealing member keeps transfixion relative to the first groove 4.
When the pressure reduction of the first sealing 5 both sides is less than combining ability between the second sealing 6 and axle 1, sealing member can be with
Axle 1 rotates, and sealing member moves relative to support 2 and end cap 3.
Further, the wall at the second sealing 6 with axle 1 laminating can also be provided with the second groove 7, the second sealing 6
And form intermediate pressure between support 2, under the effect of intermediate pressure, make the inner surface of the second sealing 6 and the appearance of axle 1
Face is adjacent to, it is possible to the sealing effectiveness between strengthening axle 1 and sealing member.
Above-mentioned second embodiment and the 3rd embodiment are by groove structure, by pressure reduction, it is possible to increase sealing effectiveness.
In three embodiments of above-mentioned axle sealing structure: the portion that the first sealing 5 is wholely set with the second sealing 6
Part can be L-type sealing ring.The motion mode of L-type sealing ring is controlled by the size gap between support 2 and end cap 3, or at L
Groove is offered in side or the bottom surface of RunddichtringO, is controlled the method for operation of sealing ring by the effect of pressure reduction.Can also be in L-type
Design tediously long sealing passage on ring structure, controlled the motion side of sealing ring by the size gap of support 2 and cover plate 3
Formula, realizes under differential pressure action sealing.
As it is shown in figure 5, the 4th embodiment of axle sealing structure: by arranging between the first sealing 5 and the second sealing 6
Engaging tooth structure 9 connects, and the axial dimension of the first sealing 5 is much larger than the axial dimension of the first groove 4, it is possible to ensure end cap 3
After being locked with support 2, the first sealing 5 tight fit is located at the first groove 4, and static relative to the first groove 4；Second is close
Envelope portion 6 is located at the gap between axle 1 and support 2.
Owing to passing through engaging tooth structure 9 mutual " occlusion " between the first sealing 5 with the second sealing 6, occlusion position is deposited
At small-gap suture, produce clearance channel.In compressor operation, the first sealing 5 remains stationary as relative to the first groove 4, and second
Sealing 6 can rotate together along with axle 1, clearance channel crimp under the effect of intermediate pressure, its internal full freezing
Oil, realizes sealing by the common effect of oil film and extruding.
Further, the wall at the second sealing 6 with axle 1 laminating can also be provided with the second groove 7, its beneficial effect with
Second embodiment is consistent.
Having the beneficial effects that of above-mentioned 4th embodiment: frictional position occur the first sealing 5 and the second sealing 6 it
Between, it is possible to effectively reduce frictional dissipation, and seal passage length by increasing, make clearance channel complications tediously long, it is possible to enter
One step is by pressure reduction coldworking strengthened sealing effectiveness.
By the description of aforementioned four embodiment, the axle sealing structure that this utility model provides can control the fortune of sealing member
Row state, specifies CONTACT WITH FRICTION area, and the power consumption making axle system position produce is in steady statue, also reduces adding of part simultaneously
Work precision.
This utility model additionally provides a kind of compressor, and it includes the axle sealing structure in any of the above-described embodiment.
In description of the present utility model, it is to be understood that use the word such as " first ", " second ", " the 3rd " to limit
Determining parts, it is only for be easy to distinguish above-mentioned parts, as not having Stated otherwise, above-mentioned word is the most special
Implication, therefore it is not intended that restriction to this utility model protection domain.
Finally should be noted that: it is only limited by above example in order to the technical solution of the utility model to be described
System；Although being described in detail this utility model with reference to preferred embodiment, those of ordinary skill in the field should
Understand: still detailed description of the invention of the present utility model can be modified or portion of techniques feature is carried out equivalent and replace
Change；Without deviating from the spirit of technical solutions of the utility model, it all should contain the technical scheme being claimed at this utility model
In the middle of scope.
Claims (10)
1. an axle sealing structure, including axle (1), support (2) and end cap (3), described end cap (3) is arranged at described support (2)
End, described axle (1) is rotatablely arranged at the described end of described support (2) and through described end cap (3), its feature
It is: a sealing member is arranged on described axle (1) and is adjacent to the described end of described support (2), the first of described sealing member
In sealing (5) is arranged on the first groove (4), described first groove (4) is arranged on the described end of described support (2) and described
One of end cap (3) or between being across the described end of described end cap (3) and described support (2)；The second of described sealing member
Sealing (6) is located between described axle (1) and described support (2).
2. axle sealing structure as claimed in claim 1, it is characterised in that: the axial dimension of described first sealing (5) is more than
The axial dimension of described first groove (4), so that described first sealing (5) tight fit is located at described first groove (4), described
First sealing (5) keeps static relative to described first groove (4).
3. axle sealing structure as claimed in claim 2, it is characterised in that: described first sealing (5) seals with described second
By arranging engaging tooth structure (9) connection between portion (6), described second sealing (6) can rotate with described axle (1).
4. axle sealing structure as claimed in claim 1, it is characterised in that: the axial dimension of described first sealing (5) is less than
The axial dimension of described first groove (4), described first sealing (5) is provided with the 3rd groove near the wall of described end cap (3)
(8), when the pressure differential of described first sealing (5) both sides is more than or equal between described second sealing (6) and described axle (1)
Combining ability, described first sealing (5) is close to the wall of described first groove (4), and is protected relative to described first groove (4)
Hold static.
5. axle sealing structure as claimed in claim 1, it is characterised in that: the axial dimension of described first sealing (5) is less than
The axial dimension of described first groove (4), described first sealing (5) is provided with the 3rd groove near the wall of described end cap (3)
(8), when the pressure differential of described first sealing (5) both sides is less than coordinating between described second sealing (6) and described axle (1)
Power, described first sealing (5) is moved relative to described first groove (4).
6. the axle sealing structure as described in any one of Claims 1 to 5, it is characterised in that: described second sealing (6) with institute
State the relative wall of axle (1) and be provided with the second groove (7).
7. the axle sealing structure as described in claim 1 or 2 or 4 or 5, it is characterised in that: described first sealing (5) is with described
Second sealing (6) is wholely set.
8. axle sealing structure as claimed in claim 7, it is characterised in that: described first sealing (5) seals with described second
The parts that portion (6) is wholely set are L-type sealing ring.
9. axle sealing structure as claimed in claim 1, it is characterised in that: the internal face of described second sealing (6) is with described
Axle (1) seals laminating, has gap between outside wall surface and the described support (2) of described second sealing (6).
10. a compressor, it is characterised in that: include the axle sealing structure as described in any one of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620540510.2U CN205669580U (en) | 2016-06-06 | 2016-06-06 | Axle sealing structure and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620540510.2U CN205669580U (en) | 2016-06-06 | 2016-06-06 | Axle sealing structure and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205669580U true CN205669580U (en) | 2016-11-02 |
Family
ID=57190839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620540510.2U Expired - Fee Related CN205669580U (en) | 2016-06-06 | 2016-06-06 | Axle sealing structure and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205669580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805316A (en) * | 2016-06-06 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Shaft seal structure and compressor |
-
2016
- 2016-06-06 CN CN201620540510.2U patent/CN205669580U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805316A (en) * | 2016-06-06 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Shaft seal structure and compressor |
| CN105805316B (en) * | 2016-06-06 | 2018-05-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Axle sealing structure and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |