CN102644746A - Axial sealing structure of scroll wrap - Google Patents
Axial sealing structure of scroll wrap Download PDFInfo
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- CN102644746A CN102644746A CN2011100398513A CN201110039851A CN102644746A CN 102644746 A CN102644746 A CN 102644746A CN 2011100398513 A CN2011100398513 A CN 2011100398513A CN 201110039851 A CN201110039851 A CN 201110039851A CN 102644746 A CN102644746 A CN 102644746A
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- stamping steel
- steel ribbon
- sealing strip
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Abstract
The invention discloses an axial sealing structure of a scroll wrap. The axial sealing structure comprises the scroll wrap, a scroll disc and a sealing strip, wherein a sealing groove is arranged on a tooth crest of the scroll wrap; the sealing strip is placed in the sealing groove; in a working process, the sealing strip is stuck at the bottom of the scroll wrap to have a sealing effect. The axial sealing structure of the scroll wrap is characterized by further comprising a supporting sealing strip which has the sealing effect and has the effect of elastically supporting the sealing strip; and the supporting sealing strip is arranged between the bottom of the sealing strip and the groove bottom of the sealing groove. The supporting sealing strip is symmetrically provided with four sealing claws; and a groove is arranged between two adjacent sealing strips. The supporting sealing strip has the effect of supporting the sealing strip; meanwhile, an effective seal is formed by each sealing claw on the supporting sealing strip, the groove wall and the groove bottom of the sealing groove, and the bottom face of the sealing strip, so as to avoid radial leakage caused by a gap between the sealing strip and the groove wall of the sealing groove and improve the sealing effect of the sealing strip; and therefore, the performances of a scroll compressor and a scroll type fluid machine are improved.
Description
Technical field
The present invention relates to scroll compressor and convolute-hydrodynamic mechanics technical field, particularly a kind of axial seal structure of wrap.
Background technique
In scroll compressor and convolute-hydrodynamic mechanics; Wrap is one of them vitals; And the axial clearance of vortex tooth top will produce radial leakage, and the factor that influences axial clearance is except that machining error, and variation of gas pressure also is the main cause that causes axial clearance to change in the back pressure cavity.Comparatively speaking, therefore the leaky line length specific diameter of axial clearance stops the radial leakage through axial clearance to improving the complete machine performance important effect to be arranged to big many of the leaky line length in gap.Present way is the pad steel wear plates in the volution trough bottom, backs down seal groove and embed Stamping Steel Ribbon in wrap to seal the radial gas leakage through axial clearance.
The shape of tooth top Stamping Steel Ribbon is identical with seal groove, and Stamping Steel Ribbon stretches out vortex body top certain distance during work.In order to guarantee sealing effect, the form and position tolerance of seal groove and tolerance of size should have certain requirement, the influence of seal groove width considered Stamping Steel Ribbon thermal expansion.
Stamping Steel Ribbon work the time has Sealing and two kinds of functions of friction member concurrently, so Stamping Steel Ribbon should be selected for use and satisfies the excellent sealing requirement good material of wear resistance again.
The Stamping Steel Ribbon working principle can when gas passes through the gap, receive throttling action and make pressure by P referring to shown in Figure 1
iReduce to P
I+1Cell wall 7 at high pressure one side sealing bar 1 and seal groove 2 produces side clearances 3, and gaps 5 are carried on the back because elastic element 4 effects produce in Stamping Steel Ribbon 1 bottom, and an approximate P is arranged at the back of the body 5 places, gap
iThe back pressure effect.Suppose the gas force of Stamping Steel Ribbon 1 top effect, pressure is from P
iReduce to P
I+1Be linear distribution, the pressure difference Δ p that then axially produces is:
Pressure difference is big more, makes the suffered sealing impacting force of Stamping Steel Ribbon big more, makes Stamping Steel Ribbon 1 be close to scroll 6 bottoms and reaches seal action, shows that Stamping Steel Ribbon has the characteristics of self-tightening sealing.
There is following problem in such sealing configuration: be easy to generate side clearance 9 between the cell wall 8 of Stamping Steel Ribbon 1 and seal groove 2; So just built a leakage way that constitutes by side clearance 9, back of the body gap 5 and side clearance 3 in high pressure one side and low pressure one side; Produce new radial leakage, reduced the performance of scroll compressor and convolute-hydrodynamic mechanics.
Summary of the invention
Technical problem to be solved by this invention is to provide to the existing problem of axial seal of existing wrap a kind of axial seal structure of new wrap; The sealing structure can be eliminated the radial leakage of wrap well, improves the performance of scroll compressor and convolute-hydrodynamic mechanics.
Technical problem to be solved by this invention can realize through following technological scheme:
A kind of axial seal structure of wrap; Comprise wrap, scroll, Stamping Steel Ribbon, the tooth top of wrap offers a seal groove, and Stamping Steel Ribbon is placed in the seal groove; Stamping Steel Ribbon is close to scroll bottom and reaches seal action during work; It is characterized in that, comprise that also one had not only sealed but also plays the support Stamping Steel Ribbon of yielding support Stamping Steel Ribbon effect, said support Stamping Steel Ribbon is arranged between the bottom land of bottom and seal groove of Stamping Steel Ribbon.
Said support Stamping Steel Ribbon is provided with at least one jaw.
Be symmetrically arranged with four jaw on the said support Stamping Steel Ribbon, be provided with groove between adjacent two jaw.
After adopting technique scheme; Supporting sealing member of the present invention had both played the effect of supporting Stamping Steel Ribbon; Simultaneously each jaw on it again can be simultaneously be built into effective sealing with the bottom surface of cell wall, bottom land and the Stamping Steel Ribbon of seal groove; Radial leakage so that the gap was produced between the cell wall of blocking-up owing to Stamping Steel Ribbon and seal groove has improved the sealing effect of Stamping Steel Ribbon, thereby has improved the performance of scroll compressor and convolute-hydrodynamic mechanics.
Description of drawings
Fig. 1 is the axial seal structural representation of existing wrap.
Fig. 2 is the axial seal structural representation of wrap of the present invention.
Fig. 3 supports the sectional schematic diagram of Stamping Steel Ribbon for the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 2 and Fig. 3, the axial seal structure of a kind of wrap shown in the figure comprises wrap 100, scroll 200, Stamping Steel Ribbon 300, and the tooth top of wrap 100 offers a seal groove 110, and Stamping Steel Ribbon 300 is placed in the seal groove 110.The axial seal structure of this wrap comprises that also one had not only sealed but also plays the support Stamping Steel Ribbon 400 of yielding support Stamping Steel Ribbon effect; Support on the Stamping Steel Ribbon 400 and be symmetrically arranged with four jaw 410,420,430,440, be provided with groove 450,460,470,480 between adjacent two jaw.This support Stamping Steel Ribbon 400 can adopt rubber to extrude and process.
During installation, this support Stamping Steel Ribbon 400 is placed between the bottom land 111 of bottom surface 310 and seal groove 110 of Stamping Steel Ribbon 300, like this with the P at the back of the body 5 places, gap
iActing in conjunction makes Stamping Steel Ribbon 300 be close to scroll 200 bottoms and reaches seal action.And the jaw 410 that supports Stamping Steel Ribbon 400 can seal the bottom surface 310 of Stamping Steel Ribbon 300 and the cell wall 112 of seal groove 110 well; Jaw 420 can be well seals with bottom land 111 cell wall 112 of seal groove 110; Jaw 430 can be well seals the bottom land 111 of seal groove 110; Jaw 440 can be well seals the bottom surface 310 of Stamping Steel Ribbon 300, has therefore blocked the leakage way that is made up of side clearance 9, back of the body gap 5 and side clearance 3, has improved sealing effect; The present invention compared with prior art; Be applied in scroll compressor and the convolute-hydrodynamic mechanics (DRY SCROLL VACUUM PUMP), can make the radial leakage rate of scroll compressor and convolute-hydrodynamic mechanics (DRY SCROLL VACUUM PUMP) have only original 1/5-1/10, have significant effect.
In addition, because supporting sealing member 400 has certain elasticity, therefore no matter which kind of state Stamping Steel Ribbon 300 is in, and the jaw that supports Stamping Steel Ribbon 400 can both keep good sealing state.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. the axial seal structure of a wrap; Comprise wrap, scroll, Stamping Steel Ribbon, the tooth top of wrap offers a seal groove, and Stamping Steel Ribbon is placed in the seal groove; Stamping Steel Ribbon is close to scroll bottom and reaches seal action during work; It is characterized in that, comprise that also one had not only sealed but also plays the support Stamping Steel Ribbon of yielding support Stamping Steel Ribbon effect, said support Stamping Steel Ribbon is arranged between the bottom land of bottom and seal groove of Stamping Steel Ribbon.
2. the axial seal structure of wrap as claimed in claim 1 is characterized in that, said support Stamping Steel Ribbon is provided with at least one jaw.
3. the axial seal structure of wrap as claimed in claim 1 is characterized in that, is symmetrically arranged with four jaw on the said support Stamping Steel Ribbon, is provided with groove between adjacent two jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100398513A CN102644746A (en) | 2011-02-17 | 2011-02-17 | Axial sealing structure of scroll wrap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100398513A CN102644746A (en) | 2011-02-17 | 2011-02-17 | Axial sealing structure of scroll wrap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102644746A true CN102644746A (en) | 2012-08-22 |
Family
ID=46657756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100398513A Pending CN102644746A (en) | 2011-02-17 | 2011-02-17 | Axial sealing structure of scroll wrap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644746A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542722A (en) * | 2017-07-25 | 2018-01-05 | 盐城美希密封件有限公司 | A kind of high temperature high voltage resistant movable sealing structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184804Y (en) * | 1993-12-27 | 1994-12-07 | 西安交通大学 | Vortex disk sealing structure |
| CN1256743A (en) * | 1998-02-19 | 2000-06-14 | 凡利安股份有限公司 | Improved tip seal for scroll-type vacuum pump |
| CN2856498Y (en) * | 2005-09-13 | 2007-01-10 | 比亚迪股份有限公司 | Vortex disk of vortex compressor |
| US20070071626A1 (en) * | 2005-09-28 | 2007-03-29 | Anest Iwata Corporation | Seal in a scroll fluid machine |
| CN200949526Y (en) * | 2006-09-27 | 2007-09-19 | 孙坚伟 | Sealing device of vortex compressor |
| CN201401332Y (en) * | 2009-03-20 | 2010-02-10 | 安徽东风机电科技股份有限公司 | Improved axial sealing device for static and dynamic scroll plates of scroll compressor |
-
2011
- 2011-02-17 CN CN2011100398513A patent/CN102644746A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184804Y (en) * | 1993-12-27 | 1994-12-07 | 西安交通大学 | Vortex disk sealing structure |
| CN1256743A (en) * | 1998-02-19 | 2000-06-14 | 凡利安股份有限公司 | Improved tip seal for scroll-type vacuum pump |
| CN2856498Y (en) * | 2005-09-13 | 2007-01-10 | 比亚迪股份有限公司 | Vortex disk of vortex compressor |
| US20070071626A1 (en) * | 2005-09-28 | 2007-03-29 | Anest Iwata Corporation | Seal in a scroll fluid machine |
| CN200949526Y (en) * | 2006-09-27 | 2007-09-19 | 孙坚伟 | Sealing device of vortex compressor |
| CN201401332Y (en) * | 2009-03-20 | 2010-02-10 | 安徽东风机电科技股份有限公司 | Improved axial sealing device for static and dynamic scroll plates of scroll compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542722A (en) * | 2017-07-25 | 2018-01-05 | 盐城美希密封件有限公司 | A kind of high temperature high voltage resistant movable sealing structure |
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Application publication date: 20120822 |