CN205714663U - The piston ring of a kind of non-lubricated compressor and described non-lubricated compressor - Google Patents
The piston ring of a kind of non-lubricated compressor and described non-lubricated compressor Download PDFInfo
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- CN205714663U CN205714663U CN201620685700.3U CN201620685700U CN205714663U CN 205714663 U CN205714663 U CN 205714663U CN 201620685700 U CN201620685700 U CN 201620685700U CN 205714663 U CN205714663 U CN 205714663U
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Abstract
The utility model discloses the piston ring of a kind of non-lubricated compressor and described non-lubricated compressor.Non-lubricated compressor has at least one piston and at least one cylinder matched with at least one piston.Piston ring is circular and has bulge loop on inwall, and bulge loop makes the cross section of described piston ring L-shaped.When piston ring is arranged on piston, bulge loop is embedded in the annular groove of piston.While piston and respective cylinder are separated by piston ring, also the annular gap between piston and respective cylinder is filled.This utility model, in the case of other parts of compressor all do not make any changes, can effectively reduce the clearance volume of compressor, thus improve the efficiency of whole machine.This utility model is also disclosed the described non-lubricated compressor with described piston ring.
Description
Technical field
This utility model relates to a kind of piston ring of gas compressor, particularly relates to the piston of a kind of non-lubricated compressor
Ring and described non-lubricated compressor.
Background technology
At present, the piston ring of oil-free lubricating piston formula compressor common on market all uses nonmetallic materials manufacture, etc.
The design of effect square-section, for sealing gas in the corresponding annular groove being installed on piston.Owing to compresser cylinder is oil-free lubrication
Structure, forms dry friction for preventing piston and cylinder contact, it has to the radial clearance of piston with cylinder is increased, sets simultaneously
Put Special support ring (or claiming guide ring) axially to be positioned by piston, thus ensure the running clearance between piston and cylinder.Above-mentioned knot
In structure, between outside piston and cylinder surfaces, define annular gap, even if after installing conventional piston ring, per pass annular groove
Between annular gap yet suffer from, the existence in this gap causes the clearance volume of compressor relatively big, causes the efficiency of compressor
Decline；Showing particularly evident in little stroke, hiigh pressure stage structure, its efficiency reduces more.
Utility model content
The purpose of this utility model is to provide the piston ring of a kind of non-lubricated compressor and described oil-free lubrication compression
Machine, in the case of other parts of compressor all do not make any changes, can effectively reduce the clearance volume of compressor, thus
Improve the efficiency of whole machine.
Solution of the present utility model is: the piston ring of a kind of non-lubricated compressor, described non-lubricated compressor
There is at least one piston and at least one cylinder matched with at least one piston described；Described piston ring is circular
And there is on inwall bulge loop, described bulge loop makes the cross section of described piston ring L-shaped；Described piston ring is arranged on described piston
Time, described bulge loop is embedded in the annular groove of described piston；While described piston and respective cylinder are separated by described piston ring, also
Annular gap between described piston and respective cylinder is filled.
As the further improvement of such scheme, described piston ring is provided with breach, and the interior external enwergy of described piston ring passes through institute
State breach to communicate.
As the further improvement of such scheme, described piston ring is provided with thin seam, and described thin seam is from the one of described piston ring
Individual end face extends to another relative end face, and the interior external enwergy of described piston ring is communicated by described thin seam.
This utility model also provides for a kind of non-lubricated compressor, and it has at least one piston, at least one piston ring
And at least one cylinder matched with at least one piston described；Described piston ring is circular and has convex on inwall
Ring, described bulge loop makes the cross section of described piston ring L-shaped；When described piston ring is arranged on described piston, described bulge loop is embedding
Enter in the annular groove of described piston；While described piston and respective cylinder are separated by described piston ring, also by described piston with
Annular gap between respective cylinder is filled.
As the further improvement of such scheme, it is relative that described non-lubricated compressor also has at least one piston described
At least one support ring answered；Described support ring is arranged in described cylinder and between described cylinder and respective pistons, institute
State support ring and support all piston rings in respective pistons.
Preferably, support ring is coaxially disposed with respective cylinder.
As the further improvement of such scheme, described non-lubricated compressor also has and at least one piston phase described
At least one corresponding air valve, described air valve is arranged on described cylinder and is turned on and off by the driving of respective pistons.
As the further improvement of such scheme, described piston ring is provided with breach, and the interior external enwergy of described piston ring passes through institute
State breach to communicate.
As the further improvement of such scheme, described piston ring is provided with thin seam, and described thin seam is from the one of described piston ring
Individual end face extends to another relative end face, and the interior external enwergy of described piston ring is communicated by described thin seam.
This utility model, in the case of other parts of compressor all do not make any changes, can effectively reduce compression
The clearance volume of machine, thus improve the efficiency of whole machine；It addition, the piston ring of this structure also can keep piston and gas further
The axiality of cylinder, plays the effect of part support ring, effectively protects piston.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of non-lubricated compressor of the present utility model.
Fig. 2 is the axonometric chart of the piston ring of non-lubricated compressor in Fig. 1.
Fig. 3 to Fig. 2 is similar, and it is the axonometric chart of another kind of piston ring of non-lubricated compressor.
Fig. 4 to Fig. 2 is similar, and it is the axonometric chart of another kind of piston ring of non-lubricated compressor.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
Refer to Fig. 1, non-lubricated compressor of the present utility model have at least one piston, at least one piston ring,
At least one gas corresponding with at least one piston described with at least one cylinder that at least one piston described matches
At least one support ring that valve is corresponding with at least one piston described.Introduce this utility model for convenience, the present embodiment
Non-lubricated compressor has: a piston 3；Two piston rings 2；1, air valve 5 of the cylinder matched with piston 3,
One support ring 4.Air valve 5 is arranged on cylinder 1 and is turned on and off by the driving of respective pistons 3.
Incorporated by reference to Fig. 2, piston ring 2 has bulge loop 21 on circular and inwall, bulge loop 21 make the cross section of piston ring 2 in
L-shaped.When piston ring 2 is arranged on piston 3, bulge loop 21 is embedded in the annular groove 31 of piston 3.Piston ring 2 is by piston 3 and corresponding gas
While cylinder 1 separates, also the annular gap 11 between piston 3 and cylinder 1 is filled.
Support ring 4 is arranged in cylinder 1 and between cylinder 1 and respective pistons 3, and support ring 4 supports in respective pistons 3
All piston rings 2.Support ring 4 is coaxially disposed with respective cylinder 1 as far as possible.
Circular and the piston ring 2 in L-shaped cross section, is installed in the annular groove 31 of piston 3, can be by between piston 3 and cylinder 1
Annular gap 11 is filled.So, when air valve 5 works, gases at high pressure in annular gap 11 reduce, suction to air valve 5 after expansion
Tolerance impact is little, and the efficiency of whole compressor can greatly improve.It addition, piston 3 is kept apart by piston ring 2 with cylinder 1, with support
Ring 4 (or being guide ring) with the use of, further ensure the axiality of piston 3 and cylinder 1, reduce piston 3 at the volley
Amplitude of fluctuation, is effectively improved its operation stability.
In other embodiments, the structure of piston ring can also be as shown in Figures 3 and 4.Such as Fig. 3, piston ring is provided with breach,
The interior external enwergy of piston ring is communicated by described breach.Such as Fig. 4, piston ring is provided with thin seam, and described thin seam is from the one of described piston ring
Individual end face extends to another relative end face, and the interior external enwergy of described piston ring is communicated by described thin seam.
This utility model piston ring material can be the various nonmetallic materials meeting working conditions of compressor, as filled polytetrafluoro
Ethylene, polyether-ether-ketone, polyimides etc..
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (9)
1. a piston ring for non-lubricated compressor, described non-lubricated compressor has at least one piston and with described
At least one cylinder that at least one piston matches；It is characterized in that: described piston ring is circular and has convex on inwall
Ring, described bulge loop makes the cross section of described piston ring L-shaped；When described piston ring is arranged on described piston, described bulge loop is embedding
Enter in the annular groove of described piston；While described piston and respective cylinder are separated by described piston ring, also by described piston with
Annular gap between respective cylinder is filled.
2. the piston ring of non-lubricated compressor as claimed in claim 1, it is characterised in that: described piston ring is provided with breach,
The interior external enwergy of described piston ring is communicated by described breach.
3. the piston ring of non-lubricated compressor as claimed in claim 1, it is characterised in that: described piston ring is provided with thin seam,
Described thin seam extends to another relative end face from an end face of described piston ring, and the interior external enwergy of described piston ring passes through institute
State thin seam to communicate.
4. a non-lubricated compressor, it has at least one piston and matches at least with at least one piston described
One cylinder；It is characterized in that: also have at least one piston ring, described piston ring is circular and has bulge loop on inwall,
Described bulge loop makes the cross section of described piston ring L-shaped；When described piston ring is arranged on described piston, described bulge loop is embedded in
In the annular groove of described piston；While described piston and respective cylinder are separated by described piston ring, also by described piston with corresponding
Annular gap between cylinder is filled.
5. non-lubricated compressor as claimed in claim 4, it is characterised in that: described non-lubricated compressor also has described
At least one support ring that at least one piston is corresponding；Described support ring be arranged in described cylinder and be positioned at described cylinder with
Between respective pistons, described support ring supports all piston rings in respective pistons.
6. non-lubricated compressor as claimed in claim 5, it is characterised in that: support ring is coaxially disposed with respective cylinder.
7. non-lubricated compressor as claimed in claim 4, it is characterised in that: described non-lubricated compressor also has and institute
Stating at least one air valve that at least one piston is corresponding, described air valve is arranged on described cylinder and driving by respective pistons
Move and be turned on and off.
8. non-lubricated compressor as claimed in claim 4, it is characterised in that: described piston ring is provided with breach, described piston
The interior external enwergy of ring is communicated by described breach.
9. non-lubricated compressor as claimed in claim 4, it is characterised in that: described piston ring is provided with thin seam, described thin seam
Extending to another relative end face from an end face of described piston ring, the interior external enwergy of described piston ring is by described thin seam phase
Logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685700.3U CN205714663U (en) | 2016-07-01 | 2016-07-01 | The piston ring of a kind of non-lubricated compressor and described non-lubricated compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685700.3U CN205714663U (en) | 2016-07-01 | 2016-07-01 | The piston ring of a kind of non-lubricated compressor and described non-lubricated compressor |
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| Publication Number | Publication Date |
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| CN205714663U true CN205714663U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620685700.3U Active CN205714663U (en) | 2016-07-01 | 2016-07-01 | The piston ring of a kind of non-lubricated compressor and described non-lubricated compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131111A (en) * | 2017-07-05 | 2017-09-05 | 浙江德拉戈机械有限公司 | A kind of shockproof frequency conversion type air compressor machine |
| CN108087241A (en) * | 2017-12-29 | 2018-05-29 | 王娜 | A kind of shockproof frequency conversion type air compressor machine |
-
2016
- 2016-07-01 CN CN201620685700.3U patent/CN205714663U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131111A (en) * | 2017-07-05 | 2017-09-05 | 浙江德拉戈机械有限公司 | A kind of shockproof frequency conversion type air compressor machine |
| CN108087241A (en) * | 2017-12-29 | 2018-05-29 | 王娜 | A kind of shockproof frequency conversion type air compressor machine |
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| GR01 | Patent grant |