CN201412300Y - Piston reciprocating air compressor totally without oil lubrication - Google Patents
Piston reciprocating air compressor totally without oil lubrication Download PDFInfo
- Publication number
- CN201412300Y CN201412300Y CN2009201723784U CN200920172378U CN201412300Y CN 201412300 Y CN201412300 Y CN 201412300Y CN 2009201723784 U CN2009201723784 U CN 2009201723784U CN 200920172378 U CN200920172378 U CN 200920172378U CN 201412300 Y CN201412300 Y CN 201412300Y
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- piston
- supporting ring
- support ring
- piston skirt
- cylinder
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Abstract
The utility model discloses a piston reciprocating air compressor totally without oil lubrication, which is provided with a positioning groove at the piston skirt below the piston ring groove. The supporting ring totally covers the piston skirt. The inner wall of the supporting ring is provided with a positioning boss which is corresponding with the position of the positioning groove of piston skirt. The positioning boss of the supporting ring is clamped in the positioning groove of the piston skirt. The utility model changes the structure of traditional supporting ring and designs two normalsupporting rings to one whole supporting ring. Although the clearance between the supporting ring and the cylinder enlarges along with the wearing increase of supporting ring, the piston does not contact with the cylinder and the normal operation of the machine is not affected because the piston skirt is totally covered in the supporting ring. Only after the thick-wall part of the supporting ringis worn, the piston contacts with the cylinder. The operating life of the supporting ring of the utility model is longer than 8000 hours and is much longer than the operating life of the supporting ring of the traditional machine.
Description
(1) technical field:
The utility model relates to a kind of air compressor, relates in particular to a kind of full-oil-free lubrication piston reciprocating air compressor.
(2) background technique:
At present, common full-oil-free lubrication piston reciprocating air compressor on the market, main machine structure is similar, especially wherein cylinder assembly part: in order to realize oil-free lubrication, piston does not directly contact with cylinder, but the macromolecular material that adopts PTFE etc. to have self-lubricating property is made support ring and is assemblied on the piston, when reciprocating motion of the pistons, support ring and cylinder minute surface form friction pair, and the piston ring that assembles same material again on piston can be realized the purpose of oil-free lubrication pressurized gas.The support ring of piston mainly contains two effects: 1, keep piston concentric with cylinder, guarantee that piston does not directly contact with cylinder; 2, bear the lateral force part that is decomposed to form by connecting rod power.Traditional piston structure all is to be processed with the support annular groove in its skirt section, support ring assembling back is by this step location, annular groove two ends, but along with the wearing and tearing of support ring strengthen, gap between support ring and the cylinder increases, piston also increases gradually along wrist pin center line amplitude of fluctuation in movement process, in case amplitude of fluctuation is when the support annular groove positioning boss to piston contacts with cylinder greatly, machine is cisco unity malfunction just, must change support ring.The operating life of support ring is generally about 2000～3000 hours.
(3) summary of the invention:
Technical problem to be solved in the utility model just provides a kind of full-oil-free lubrication piston reciprocating air compressor, the support ring of this air compressor cooperates improved piston, can guarantee that piston does not contact with cylinder, the operating life of support ring reached more than 8000 hours.
In order to solve the problems of the technologies described above, the technical solution that full-oil-free lubrication piston reciprocating air compressor of the present utility model adopted is such: it comprises cylinder, piston, connecting rod, piston skirt below piston ring groove is provided with positioning groove, in support ring is coated on the piston skirt fully, the inwall of support ring is provided with the corresponding positioning boss in positioning groove position with the piston skirt, and the positioning boss of support ring is clamped in the positioning groove of piston skirt.
Described piston skirt is provided with two positioning grooves up and down, and the inwall of described support ring is provided with two positioning boss and corresponding with two positioning groove positions up and down of piston skirt respectively up and down.
After adopting technique scheme, because the piston skirt of full-oil-free lubrication piston reciprocating air compressor of the present utility model below piston ring groove is provided with positioning groove, in support ring is coated on the piston skirt fully, the inwall of support ring is provided with the corresponding positioning boss in positioning groove position with the piston skirt, the positioning boss of support ring is clamped in the positioning groove of piston skirt, therefore, the utility model changes the structure of traditional support ring, original two support rings are designed to an integrated support ring, though along with the wearing and tearing of support ring strengthen, gap between support ring and the cylinder increases, but because the piston skirt is coated in the support ring fully, piston can not contact with cylinder, does not influence the machine proper functioning, have only after the support ring wall thickness has has partly worn and torn, piston just can contact with cylinder.The operating life of the utility model support ring is more than 8000 hours, and is more much longer than the operating life of conventional machines support ring.
(4) description of drawings:
Fig. 1 is the cylinder position schematic representation of a kind of full-oil-free lubrication piston reciprocating air compressor of the utility model;
Fig. 2 is the partial sectional view of support ring shown in Fig. 1;
Fig. 3 is the schematic representation of structure of piston shown in Fig. 1.
(5) embodiment:
In conjunction with Fig. 1, Fig. 2, Fig. 3 as seen, three road piston ring grooves 2 are arranged at piston 1 top of full-oil-free lubrication piston reciprocating air compressor of the present utility model, the piston skirt 3 of piston ring groove 2 belows is provided with two positioning grooves 4 up and down, in support ring 5 is coated on piston skirt 3 fully, the inwall of support ring 5 is provided with up and down two positioning boss 6 and corresponding with two positioning groove 4 positions up and down of piston skirt 3 respectively, and two positioning boss 6 up and down of support ring 5 are clamped on respectively in two positioning grooves 4 up and down of piston skirt 3.Described support ring 5 adopts self lubricating material manufacturings such as filled polytetrafluoroethylene, polyether-ether-ketone, can suitably select for use according to the gas medium of compression.When piston 1 to-and-fro motion, support ring 5 both can guarantee the concentricity of piston 1 and cylinder 7, can bear the lateral force that is passed over by connecting rod 8 again; As long as support ring 5 is wearing and tearing fully not, piston 1 is swung in any case along piston pin hole 9, also can not collide with cylinder 7.
Position, the quantity of the positioning boss 6 on the positioning groove 4 of described piston skirt 3 and support ring 5 inwalls are not limit, and above-mentioned variation is all to realize the purpose of this utility model degree of being.
Claims (2)
1, a kind of full-oil-free lubrication piston reciprocating air compressor, comprise cylinder (7), piston (1), connecting rod (8), it is characterized in that: the piston skirt (3) in piston ring groove (2) below is provided with positioning groove (4), in support ring (5) is coated on piston skirt (3) fully, the inwall of support ring (5) is provided with the corresponding positioning boss in positioning groove (4) position (6) with piston skirt (3), and the positioning boss (6) of support ring (5) is clamped in the positioning groove (4) of piston skirt (3).
2, full-oil-free lubrication piston reciprocating air compressor according to claim 1, it is characterized in that: described piston skirt (3) are provided with two positioning grooves (4) up and down, and the inwall of described support ring (5) is provided with two positioning boss (6) and corresponding with the position of two positioning grooves (4) up and down of piston skirt (3) respectively up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201723784U CN201412300Y (en) | 2009-06-03 | 2009-06-03 | Piston reciprocating air compressor totally without oil lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201723784U CN201412300Y (en) | 2009-06-03 | 2009-06-03 | Piston reciprocating air compressor totally without oil lubrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412300Y true CN201412300Y (en) | 2010-02-24 |
Family
ID=41714184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201723784U Expired - Fee Related CN201412300Y (en) | 2009-06-03 | 2009-06-03 | Piston reciprocating air compressor totally without oil lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412300Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615370A (en) * | 2013-10-30 | 2014-03-05 | 南通市红星空压机配件制造有限公司 | Novel seal of compressor |
| CN104696196A (en) * | 2015-02-27 | 2015-06-10 | 安徽寅时压缩机制造有限公司 | Oil-free constant-temperature compressor |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN116557261A (en) * | 2023-05-30 | 2023-08-08 | 烟台东德氢能技术有限公司 | Compression cylinder of circulating liquid seal compressor |
-
2009
- 2009-06-03 CN CN2009201723784U patent/CN201412300Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN103615370A (en) * | 2013-10-30 | 2014-03-05 | 南通市红星空压机配件制造有限公司 | Novel seal of compressor |
| CN104696196A (en) * | 2015-02-27 | 2015-06-10 | 安徽寅时压缩机制造有限公司 | Oil-free constant-temperature compressor |
| CN116557261A (en) * | 2023-05-30 | 2023-08-08 | 烟台东德氢能技术有限公司 | Compression cylinder of circulating liquid seal compressor |
| CN116557261B (en) * | 2023-05-30 | 2024-02-06 | 烟台东德氢能技术有限公司 | Compression cylinder of circulating liquid seal compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anqing Bailian Oil-free Compressor Co., Ltd. Assignor: Wang Qian Contract record no.: 2011340000068 Denomination of utility model: Full-oil-free lubrication piston reciprocating air compressor Granted publication date: 20100224 License type: Exclusive License Record date: 20110628 |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Qian Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20170603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |