CN206513525U - A kind of piston packing ring of oilless air compressor - Google Patents
A kind of piston packing ring of oilless air compressor Download PDFInfo
- Publication number
- CN206513525U CN206513525U CN201720038641.5U CN201720038641U CN206513525U CN 206513525 U CN206513525 U CN 206513525U CN 201720038641 U CN201720038641 U CN 201720038641U CN 206513525 U CN206513525 U CN 206513525U
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- China
- Prior art keywords
- face
- ring
- sealing
- connection end
- packing ring
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- 238000012856 packing Methods 0.000 title claims abstract description 59
- 238000007789 sealing Methods 0.000 claims description 89
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 22
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model discloses a kind of piston packing ring of oilless air compressor.The piston packing ring of the oilless air compressor includes being used for the first connection end and the second connection end that mutual inlay card is connected；First connection end includes the first end face towards second connection end, and it is additionally provided with the sealed groove set towards the described second connection end opening, second connection end includes the second end face set towards the first end face, and the seal convexity of setting corresponding with the sealed groove is additionally provided with, the inner surface of the piston packing ring is additionally provided with the annular groove set along the piston packing ring bearing of trend；Operationally, the seal convexity of second connection end is embedded in the sealed groove of first connection end, and interval forms gas passage between the first end face and the second end face, the gas passage is connected with the annular groove, and gas is entered in the annular groove by the gas passage.
Description
Technical field
The utility model belongs to piston technical field, is specifically related to a kind of piston packing ring of oilless air compressor.
Background technology
Air compressor (abbreviation air compressor machine) is a kind of equipment to compressed gas, can convert mechanical energy into gas
Pressure energy.Air compressor is similar with water pump structure, and most of air compressors are reciprocating-piston, rotating vane or rotation spiral shell
Bar.
In the air compressor machine of reciprocating-piston, the piston packing ring of existing part air compressor machine is using there is oil lubrication, and piston is close
Seal ring uses metal material, and friction temperature is high, it is necessary to which oil carrys out lubricating piston-ring during piston movement, and oil consumption is big, the air after compression
In contain oil particles.Moreover, piston packing ring needs to ensure sealing using multiple tracks, rubbing surface is increased, makes machine efficiency
It is not high.
Utility model content
The problem of the purpose of this utility model is to solve existing middle, there is provided a kind of oil-free with high piston seal performance
The piston packing ring of air compressor machine.
To reach above-mentioned purpose, the utility model is adopted the following technical scheme that, a kind of piston packing ring of oilless air compressor
Including：The first connection end and the second connection end connected for mutual inlay card；First connection end is included towards described second
The first end face of connection end, and it is additionally provided with the sealed groove set towards the described second connection end opening, second connection end
Including the second end face set towards the first end face, and it is convex to be additionally provided with the sealing of setting corresponding with the sealed groove
Rise, the inner surface of the piston packing ring is additionally provided with the annular groove set along the piston packing ring bearing of trend；In work
When making, the seal convexity of second connection end is embedded in the sealed groove of first connection end, and in the first end
Interval forms gas passage between face and the second end face, and the gas passage is connected with the annular groove, and causes
Gas is entered in the annular groove by the gas passage.
Preferably, the sealed groove includes being connected with each other the first level sealing surface set and the first vertical seal face；
The seal convexity includes being connected with each other the second horizontal seal face and the second vertical seal face set, second horizontal seal
Face and the second vertical seal face correspond to the first level sealing surface respectively and the first vertical seal face is set.
Preferably, the piston packing ring includes opposing parallel spaced sealing top surface of ring and sealing ring bottom surface, institute
Sealed groove is stated close to the sealing top surface of ring side, and set towards the sealing top surface of ring opening；The seal convexity is leaned on
The nearly sealing top surface of ring side, and the top surface of the seal convexity seals top surface of ring in the same plane with described；In work
When, the seal convexity of second connection end is embedded in the sealed groove of first connection end, and the gas passage is formed
In the first end face and the second end face close to the sealing ring bottom surface side.
Preferably, the opposite end of the annular groove extends respectively to the first end face and the second end face；
In the first end face and the second end face, the annular groove seals top surface of ring and the sealing ring bottom surface with described respectively
Distance it is equal.
Preferably, the sealed groove generally cube groove structure, the first level sealing surface and described first
Vertical seal face is arranged in a mutually vertical manner；The seal convexity generally cube bulge-structure, the second horizontal seal face and
The second vertical seal face is arranged in a mutually vertical manner.
Preferably, the piston packing ring also includes table in opposing parallel spaced sealing ring outer surface and sealing ring
Face, on the direction perpendicular to the sealing ring outer surface and the sealing ring inner surface, the width of the sealed groove and institute
The width for stating seal convexity is identical.
Preferably, the piston packing ring is that the composite comprising polytetrafluoroethylene (PTFE) and carbon fiber is prepared from.
Compared to prior art, the technical scheme that the utility model is provided has the advantages that：
1st, be provided with the piston packing ring of the oilless air compressor for mutual inlay card connect the first connection end and
Second connection end, and it is additionally provided with what is set along the piston packing ring bearing of trend in the inner surface of the piston packing ring
Annular groove, so that gas enters described by the gas passage between first connection end and second connection end
In annular groove, and then the sealing property between first connection end and second connection end can not only be improved, may be used also
It is even closer to cause the piston packing ring to be fitted with the inwall of the piston cylinder, so that reducing compressed air passes through the work
The air leakage of sealing ring and the piston cylinder is filled in, the efficiency of inflating of the piston component is improved；
2nd, in the piston packing ring of the oilless air compressor, the seal convexity of second connection end is embedded at described
In the sealed groove of one connection end, and the second horizontal seal face and the first level sealing surface mutually abut sealing, institute
State the second vertical seal face and the first vertical seal face and mutually abut sealing, so as to realize first connection end and described
Between second connection end in horizontal plane be tightly connected with being tightly connected in vertical plane, and then improve the piston packing ring
Sealing property；
3rd, on the direction perpendicular to the sealing top surface of ring and the sealing ring bottom surface, depth of the sealed groove etc.
It is identical in the thickness of the seal convexity；On the direction perpendicular to the sealing ring outer surface and the sealing ring inner surface,
The width of the sealed groove is identical with the width of the seal convexity, so that first connection end and described second connects
The connection connect between end is more accurate, so that with better seal performance.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes one of the present utility model
Point, schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model
It is improper to limit.In the accompanying drawings：
The structural representation of the piston packing ring for the oilless air compressor that Fig. 1 provides for the utility model embodiment；
Fig. 2 is the structural representation of another angle of piston packing ring of oilless air compressor shown in Fig. 1.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are clearer, clear, with
Under in conjunction with the accompanying drawings and embodiments, the utility model is further elaborated.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
Please refer to Fig. 1 and Fig. 2, the piston packing ring 100 for the oilless air compressor that the utility model is provided generally is set
There is the loop configuration of opening, and be prepared from by the composite comprising polytetrafluoroethylene (PTFE) and carbon fiber.Specifically, described
The compositions such as graphite, molybdenum disulfide, copper powder, carbon fiber are also added in composite to improve the resistance to of the piston packing ring 100
Mill property, self lubricity and thermal conductivity.
The piston packing ring 100 of the oilless air compressor includes opposing parallel spaced sealing top surface of ring 101 and close
Seal ring bottom surface 102 and opposing parallel spaced sealing ring outer surface 103 and sealing ring inner surface 104.The sealing ring top
Ring inner surface 104 is vertical sets with the sealing ring outer surface 103 and the sealing respectively for face 101 and the sealing ring bottom surface 102
Put.
For convenience, the plane parallel to the sealing top surface of ring 101 and the sealing ring bottom surface 102 is denoted as water
Plane, will parallel to it is described sealing ring outer surface 103 and it is described sealing ring inner surface 104 plane be denoted as vertical plane.
Moreover, the piston packing ring 100 also includes being used for the first connection end 10 and the second connection that mutual inlay card is connected
End 20.
First connection end 10 includes the first end face 11 towards second connection end 20, and is additionally provided with towards described
The sealed groove 12 that second connection end 20 opening is set.Wherein, the first end face 11 is the transversal of the piston packing ring 100
Face.
The sealed groove 12 generally cube groove structure, and set close to sealing top surface of ring 101 side, and
Also set towards sealing top surface of ring 101 opening.Specifically, the sealed groove 12 includes being mutually connected vertically the of setting
One horizontal seal face 121 and the first vertical seal face 122.The first level sealing surface 121 is the horizontal plane, described first
Vertical seal face 122 is the vertical plane, and with the corresponding sealing ring inner surface 104 is opposing parallel sets.
Selectively, in order to easy to process, the sealed groove 12 can also be open towards the sealing ring outer surface 103
Set.
Second connection end 20 includes the second end face 21 towards the first end face 11, and is additionally provided with and the sealing
The seal convexity 22 of the corresponding setting of groove 12.
Wherein, the second end face 21 is also the cross section of the piston packing ring 100, and with the phase of first end face 11
Parallel interval is set.
The seal convexity 22 generally cube bulge-structure, and set close to sealing top surface of ring 101 side, and
The top surface of the seal convexity 22 seals top surface of ring 101 in the same plane with described.Specifically, the seal convexity 22 includes
It is mutually connected vertically the second horizontal seal face 221 and the second vertical seal face 222 of setting.The second horizontal seal face 221
The horizontal plane, the second vertical seal face 222 is the vertical plane, and with the corresponding sealing ring inner surface
104 opposing parallel settings.
Moreover, in the present embodiment, the second horizontal seal face 221 and the second vertical seal face 222 are right respectively
The first level sealing surface 121 and the first vertical seal face 122 is answered to set.
Operationally, the seal convexity 22 of second connection end 20 is embedded at the sealed groove of first connection end 10
In 12, and the second horizontal seal face 221 and the first level sealing surface 121 mutually abut sealing, and described second is vertical
Sealing surface 222 and the first vertical seal face 122 mutually abut sealing, so as to realize first connection end 10 and institute respectively
State being tightly connected and being tightly connected in vertical plane in horizontal plane between the second connection end 20.
Moreover, in order to improve the sealing property between first connection end 10 and second connection end 20, vertical
In on the direction of the sealing top surface of ring 101 and the sealing ring bottom surface 102, the depth of the sealed groove 12 is equal to described close
The thickness of envelope projection 22 is identical；On the direction perpendicular to the sealing ring outer surface 103 and the sealing ring inner surface 104,
The width of the sealed groove 12 is identical with the width of the seal convexity 22.
Further, when the seal convexity 22 is embedded at the sealed groove 12, in first connection end 10
Interval forms gas passage 105 between first end face 11 and the second end face 21 of second connection end 20.
It should be appreciated that because the sealed groove 12 is set close to sealing top surface of ring 101 side, and also towards described
Seal the opening of top surface of ring 101 to set, the seal convexity 22 is set close to sealing top surface of ring 101 side, then is caused described
Gas passage 105 is formed at the side of the first end face 11 and the second end face 21 close to the sealing ring bottom surface 102.
The sealing ring inner surface 104 of the piston packing ring 100 is additionally provided with along the bearing of trend of piston packing ring 100 and set
The annular groove 106 put.The annular groove 106 is connected with the gas passage 105, and causes gas to pass through the gas
Passage 105 enters in the annular groove 106.
In the present embodiment, the opposite end of the annular groove 106 extends respectively to the first end face 11 and described
Second end face 21；And in the first end face 11 and the second end face 21, the annular groove 106 and the sealing ring
Top surface 101 is equal with the distance of the sealing ring bottom surface 102, so that the gases at high pressure in the annular groove 106 can be with
Application active force equably is carried out to the piston packing ring 100, the stability of the piston packing ring 100 is improved.
The operation principle of the piston packing ring 100 is described below with reference to conventional piston component.
When the piston packing ring 100 is applied into piston component, the piston packing ring 100 is embedded at the piston group
In the piston of part, and with the inwall of the piston cylinder to contacting.Moreover, the piston packing ring 100 is when installing, it is described
The sealing top surface of ring 101 of piston packing ring 100 is installed towards the descent of piston direction, and the sealing ring bottom surface 102 is towards institute
State the installation of piston stroking upward direction.That is, in the piston component, the court of gas passage 105 of the piston packing ring 100
To along piston stroking upward direction opening.
Because the gas passage 105 is towards along piston stroking upward direction opening, when the piston stroking upward, the work
Gas in the plug compression piston cylinder, then gas compressed can be close into the piston by the gas passage 105
The annular groove 106 of the inner side of seal ring 100, and the piston to is pushed the piston packing ring 100 by the annular groove 106
Cylinder direction, on the one hand cause first connection end 10 the first vertical seal face 122 and second connection end 20 second
Fitted between vertical seal face 222 even closer, on the other hand cause the inwall of the piston packing ring 100 and the piston cylinder
Laminating is even closer, so as to reduce air leakage of the compressed air by the piston packing ring 100 and the piston cylinder, improves
The piston component inflates efficiency.
Compared to prior art, the technical scheme that the utility model is provided has the advantages that：
1st, be provided with the piston packing ring of the oilless air compressor for mutual inlay card connect the first connection end and
Second connection end, and it is additionally provided with what is set along the piston packing ring bearing of trend in the inner surface of the piston packing ring
Annular groove, so that gas enters described by the gas passage between first connection end and second connection end
In annular groove, and then the sealing property between first connection end and second connection end can not only be improved, may be used also
It is even closer to cause the piston packing ring to be fitted with the inwall of the piston cylinder, so that reducing compressed air passes through the work
The air leakage of sealing ring and the piston cylinder is filled in, the efficiency of inflating of the piston component is improved；
2nd, in the piston packing ring of the oilless air compressor, the seal convexity of second connection end is embedded at described
In the sealed groove of one connection end, and the second horizontal seal face and the first level sealing surface mutually abut sealing, institute
State the second vertical seal face and the first vertical seal face and mutually abut sealing, so as to realize first connection end and described
Between second connection end in horizontal plane be tightly connected with being tightly connected in vertical plane, and then improve the piston packing ring
Sealing property；
3rd, on the direction perpendicular to the sealing top surface of ring and the sealing ring bottom surface, depth of the sealed groove etc.
It is identical in the thickness of the seal convexity；On the direction perpendicular to the sealing ring outer surface and the sealing ring inner surface,
The width of the sealed groove is identical with the width of the seal convexity, so that first connection end and described second connects
The connection connect between end is more accurate, so that with better seal performance.
Preferred embodiment of the present utility model has shown and described in described above, as previously described, it should be understood that this practicality is new
Type is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and available for various other groups
Close, change and environment, and above-mentioned teaching or the technology of association area can be passed through in utility model contemplated scope described herein
Or knowledge is modified.And the change and change that those skilled in the art are carried out do not depart from spirit and scope of the present utility model, then
All should be in the protection domain of the utility model appended claims.
Claims (6)
1. a kind of piston packing ring of oilless air compressor, it is characterised in that including：The first connection end connected for mutual inlay card
With the second connection end；
First connection end includes the first end face towards second connection end, and is additionally provided with towards second connection end
Be open the sealed groove set,
Second connection end includes the second end face set towards the first end face, and is additionally provided with and the sealed groove phase
The seal convexity being correspondingly arranged,
The inner surface of the piston packing ring is additionally provided with the annular groove set along the piston packing ring bearing of trend；
Operationally, the seal convexity of second connection end is embedded in the sealed groove of first connection end, and in institute
State interval between first end face and the second end face and form gas passage, the gas passage is connected with the annular groove
It is logical, and gas is entered in the annular groove by the gas passage.
2. a kind of piston packing ring of oilless air compressor as claimed in claim 1, it is characterised in that：The sealed groove includes
It is connected with each other the first level sealing surface set and the first vertical seal face；
The seal convexity includes being connected with each other the second horizontal seal face and the second vertical seal face set, second level
Sealing surface and the second vertical seal face correspond to the first level sealing surface respectively and the first vertical seal face is set.
3. a kind of piston packing ring of oilless air compressor as claimed in claim 2, it is characterised in that：The piston packing ring bag
Opposing parallel spaced sealing top surface of ring and sealing ring bottom surface are included,
The sealed groove is set close to the sealing top surface of ring side, and towards the sealing top surface of ring opening；
The seal convexity exists close to the sealing top surface of ring side, and the top surface of the seal convexity with the sealing top surface of ring
In same plane；
Operationally, the seal convexity of second connection end is embedded in the sealed groove of first connection end, the gas
Body passage is formed at the side close to the sealing ring bottom surface between the first end face and the second end face.
4. a kind of piston packing ring of oilless air compressor as claimed in claim 3, it is characterised in that：The phase of the annular groove
Two ends are extended respectively to the first end face and the second end face；
In the first end face and the second end face, the annular groove seals top surface of ring and the sealing with described respectively
The distance of ring bottom surface is equal.
5. a kind of piston packing ring of oilless air compressor as claimed in claim 2, it is characterised in that：The sealed groove is overall
For cube groove structure, the first level sealing surface and the first vertical seal face are arranged in a mutually vertical manner；
The seal convexity generally cube bulge-structure, the second horizontal seal face and the second vertical seal face phase
Mutually it is vertically arranged.
6. a kind of piston packing ring of oilless air compressor as claimed in claim 1, it is characterised in that：
The piston packing ring also includes opposing parallel spaced sealing ring outer surface and sealing ring inner surface,
On the direction perpendicular to the sealing ring outer surface and the sealing ring inner surface, the width of the sealed groove and institute
The width for stating seal convexity is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720038641.5U CN206513525U (en) | 2017-01-13 | 2017-01-13 | A kind of piston packing ring of oilless air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720038641.5U CN206513525U (en) | 2017-01-13 | 2017-01-13 | A kind of piston packing ring of oilless air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513525U true CN206513525U (en) | 2017-09-22 |
Family
ID=59863728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720038641.5U Active CN206513525U (en) | 2017-01-13 | 2017-01-13 | A kind of piston packing ring of oilless air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236487A (en) * | 2018-11-26 | 2019-01-18 | 耿显虎 | A kind of piston ring |
| CN110454357A (en) * | 2019-09-18 | 2019-11-15 | 张家港瑞景动力科技有限公司 | Low temperature end piston of a low temperature pump |
-
2017
- 2017-01-13 CN CN201720038641.5U patent/CN206513525U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236487A (en) * | 2018-11-26 | 2019-01-18 | 耿显虎 | A kind of piston ring |
| CN110454357A (en) * | 2019-09-18 | 2019-11-15 | 张家港瑞景动力科技有限公司 | Low temperature end piston of a low temperature pump |
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