CN201027612Y - Non-oil lubrication step piston type air compressor - Google Patents
Non-oil lubrication step piston type air compressor Download PDFInfo
- Publication number
- CN201027612Y CN201027612Y CNU2007200116569U CN200720011656U CN201027612Y CN 201027612 Y CN201027612 Y CN 201027612Y CN U2007200116569 U CNU2007200116569 U CN U2007200116569U CN 200720011656 U CN200720011656 U CN 200720011656U CN 201027612 Y CN201027612 Y CN 201027612Y
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Abstract
The utility model relates to a totally oilless lubrication differential piston type air compressor, which is characterized in that a crank-link mechanism is adopted; a differential piston respectively realizes first and second stages compression as well as first and third stages compression by one piston; two connecting rods respectively drive first/second stage differential pistons and first/third stage differential pistons on parallel planes; a piston pin and a pored bearing with two sealed ends are provided with lubricating grease refilling openings, while the side face of a crankcase is provided with a lubricating grease refilling window; separation design is adopted between a second stage cylinder block and first/second stage cylinder blocks and between a third cylinder block and first/third cylinder blocks. The utility model is designed for sectors which adopt medium pressure gas (1.6 MPa to 6 MPa) purifying gas source and have stricter environmental requirements and solves the problems of extremely uneven distribution of load and exhaust temperature of multi-stage compression piston; moreover, with reasonable distribution of master cylinders and even distribution of high-temperature areas which are far away from a needle bearing, the utility model prolongs the service life of the needle bearing and is more convenient for maintenance.
Description
Technical field
The utility model belongs to the universal machine field, is to the improvement of air compressor design, relates to a kind of full-oil-free lubrication step piston formula air compressor that need not add the lubricant oil non-environmental-pollution.
Background technique
At present, the full-oil-free lubrication piston formula air compressor of domestic production, its structure is a connecting rod, and mechanism's each point connection all adopts stuffing box bearing to realize, promptly connecting rod is connected employing both-end seal ball bearing with bent axle, connecting rod is connected the employing needle bearing with piston, add the sealing form, every piston produces single stage of pressure, even if multistage compression also is like this, this structure is at home and abroad used decades, is still using at present.Along with the demand and the development of environmental protection requirement full-oil-free lubrication piston formula air compressor, (1.6～6MPa) products constantly increase, and full-oil-free lubrication piston formula air compressor of the prior art can't satisfy the demands for atm number and pressure.Have 1, bearing is low working life, is that promptly centrifugal force causes the lubricating grease in the bearing to run off too early owing to adopt its linear velocity of crank ball bearing big, bearing is in do running and damages; The piston lateral force is bigger, frictional force is increased cause the guide ring wearing and tearing to be accelerated and excessive discharge temperature, makes its damage thereby the lubricating grease premature aging is rotten in the connecting rod small end needle bearing.2, (1.6～6MPa) compressors compress more than three grades, and piston bearing load and delivery temperature branch are extremely inhomogeneous, and its structure is difficult to realize for middle pressure.3, dismounting inconvenience, maintenance difficult, its reason is because bent axle is snakelike bent axle, connnecting rod big end ball bearing and bent axle suit interference fit, if when giving bearing supplemental lubrication fat, bearing must be removed from bent axle, be very difficult as no special device, and particularly many connecting rods (bearing) user's maintenance and maintenance are difficult to carry out, air compressor is scrapped, brought great loss for user and production.
Summary of the invention
The utility model has overcome the defective of above-mentioned existence, purpose is for guaranteeing present full-oil-free lubrication piston formula air compressor realization oil-free lubrication, the gas of being discharged does not contain greasy dirt, does not pollute operating environment and working medium, a kind of medium pressure gas (1.6～6MPa) users' maintenance and easy maintenance, full-oil-free lubrication step piston formula air compressor of long service life of being used for is provided.
The utility model full-oil-free lubrication step piston formula air compressor content Description:
The utility model full-oil-free lubrication step piston formula air compressor, be by: secondary cylinder lid, the secondary air valve, the secondary cylinder body, the first stage piston ring, the secondary guide ring, three grades of air valves, three grades of piston rings, side cover, the three-stage cylinder lid, three grades of guide rings, the three-stage cylinder body, the one-level Aspirating valves, the first stage piston ring, the one-level guide ring, wrist pin, one/two differential piston, connecting rod, both-end seals bearing with holes, bent axle, bearing, the one-level outlet valve, pin is stifled, crankcase, bearing, needle bearing, seal ring, one/three step piston, add alicyclic ring, one/secondary cylinder body, one/three-stage cylinder body is formed, it is characterized in that: adopt connecting rod, step piston is to constitute firsts and seconds and one-level and three grades of two stage compression on a piston respectively, drive one/two differential piston and one/three step piston respectively on parallel antarafacial by two connecting rods, the major part of connecting rod is connected with bent axle, both-end is set on bent axle seals bearing with holes, the microcephaly of connecting rod is connected with one/three step piston with one/two differential piston, in the both sides of connecting rod seal ring is set, the wrist pin in needle bearing and road with holes.
Seal to be provided with on the bearing with holes at wrist pin and both-end and add the lubricating grease duct, be provided with in the side of crankcase and add the lubricating grease window.
Secondary cylinder body and one/secondary cylinder body and three-stage cylinder body and one/three-stage cylinder body adopt separate design.
The utility model full-oil-free lubrication step piston formula air compressor is that (1.6～6MPa) purify source of the gas and the higher department of environmental requirement in order to use medium pressure gas, problem at the deficiencies in the prior art and existence designs, adopt step piston formula structure, solved the extremely uneven problem of multistage compression piston bearing load and delivery temperature branch, master cylinder branch is reasonable, high-temperature area is even away from needle bearing and branch, has improved the life-span of needle bearing.Adopt two sections guiding, reduced that each guide ring side pressure, frictional force reduce, delivery temperature reduces.Adopt both-end to seal the wrist pin in bearing with holes and road with holes, under the situation of not dismantling bearing, extremely regularly add lubricating grease easily, make bearing be in good lubricating status all the time, improve its working life to bearing.Be provided with in the side of crankcase and add the lubricating grease window, do not tear cylinder body and bearing open and can give stuffing box bearing grease-added, make maintenances, maintain more convenient.The utility model can be widely used in departments such as chemical industry, grain processing, blowing, pneumatic instrument, machinery, metallurgy, petroleum production, electronic instrument, weaving.
Description of drawings
Fig. 1 is a full-oil-free lubrication step piston formula air compressor structure schematic representation
Fig. 2 is a full-oil-free lubrication step piston formula air compressor sectional view
Embodiment
The utility model full-oil-free lubrication step piston formula air compressor is achieved in that below in conjunction with accompanying drawing and specifies.See Fig. 1, Fig. 2, full-oil-free lubrication step piston formula air compressor is by: secondary cylinder lid 1, secondary air valve 2, secondary cylinder body 3, first stage piston ring 4, secondary guide ring 5, three grades of air valves 6, three grades of piston rings 7, side cover 8, three-stage cylinder lid 9, three grades of guide rings 10, three-stage cylinder body 11, one-level Aspirating valves 12, first stage piston ring 13, one-level guide ring 14, wrist pin 15, one/two differential piston 16, connecting rod 17, both-end seals bearing 18 with holes, bent axle 19, bearing 20, one-level outlet valve 21, pin stifled 22, crankcase 23, bearing 24, needle bearing 25, seal ring 26, one/three step piston 27, add alicyclic ring 28, one/secondary cylinder body 29, one/three-stage cylinder body 30 is formed, it is characterized in that: adopt connecting rod, step piston is to finish firsts and seconds and one-level and three grades of two stage compression on a piston respectively; Two connecting rods 17 drive one/two differential piston 16 and one/three step piston 27 respectively on parallel antarafacial; The major part of connecting rod 17 is connected with bent axle 19, the bearing with holes 18 in both-end road with holes is set on bent axle 19, the microcephaly of connecting rod 17 is connected with one/three step piston 27 with one/two differential piston 16, and the wrist pin 15 that seal ring 26, needle bearing 25 and road with holes are set in the both sides of connecting rod 17 forms connecting rod.Be provided with on wrist pin 15 and bearing with holes 18 and add the lubricating grease duct, be provided with in the side of crankcase 23 and add the lubricating grease window, the utmost point is regularly added lubricating grease easily, makes bearing be in good lubricating status all the time, improves its working life.Secondary cylinder body 3 and one/secondary cylinder body 29 and three-stage cylinder body 11 and one/three-stage cylinder body 30 adopt separate design, make easy accessibility.
Claims (3)
1. full-oil-free lubrication step piston formula air compressor, be by: secondary cylinder lid (1), secondary air valve (2), secondary cylinder body (3), first stage piston ring (4), secondary guide ring (5), three grades of air valves (6), three grades of piston rings (7), side cover (8), three-stage cylinder lid (9), three grades of guide rings (10), three-stage cylinder body (11), one-level Aspirating valves (12), first stage piston ring (13), one-level guide ring (14), wrist pin (15), one/two differential piston (16), connecting rod (17), both-end seals bearing with holes (18), bent axle (19), bearing (20), one-level outlet valve (21), pin stifled (22), crankcase (23), bearing (24), needle bearing (25), seal ring (26), one/three step piston (27), add alicyclic ring (28), one/secondary cylinder body (29), one/three-stage cylinder body (30) is formed, it is characterized in that: adopt connecting rod, step piston is to constitute firsts and seconds and one-level and three grades of two stage compression on a piston respectively, drive one/two differential piston (16) and one/three step piston (27) respectively on parallel antarafacial by two connecting rods (17), the major part of connecting rod (17) is connected with bent axle (19), both-end is set on bent axle (19) seals bearing with holes (18), the microcephaly of connecting rod (17) is connected with one/three step piston (27) with one/two differential piston (16), in the both sides of connecting rod (17) seal ring (26) is set, the wrist pin (15) in needle bearing (25) and road with holes.
2. full-oil-free lubrication step piston formula air compressor according to claim 1 is characterized in that: seal to be provided with on the bearing with holes (18) at wrist pin (15) and both-end and add the lubricating grease duct, be provided with in the side of crankcase (23) and add the lubricating grease window.
3. full-oil-free lubrication step piston formula air compressor according to claim 1 is characterized in that: described secondary cylinder body (3) and one/secondary cylinder body (29) and three-stage cylinder body (11) and one/three-stage cylinder body (30) adopt separate design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200116569U CN201027612Y (en) | 2007-04-10 | 2007-04-10 | Non-oil lubrication step piston type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200116569U CN201027612Y (en) | 2007-04-10 | 2007-04-10 | Non-oil lubrication step piston type air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027612Y true CN201027612Y (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200116569U Expired - Fee Related CN201027612Y (en) | 2007-04-10 | 2007-04-10 | Non-oil lubrication step piston type air compressor |
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| CN (1) | CN201027612Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200113A (en) * | 2011-01-21 | 2011-09-28 | 佛山市广顺电器有限公司 | Inverse V-shaped crank pressurization air charging equipment |
| CN102261317A (en) * | 2011-01-21 | 2011-11-30 | 佛山市广顺电器有限公司 | V-shaped compressor |
| CN102758756A (en) * | 2012-07-18 | 2012-10-31 | 汉纬尔机械(上海)有限公司 | Commonly-used platform for double-row multistage compressor |
| CN103748359A (en) * | 2011-06-14 | 2014-04-23 | 罗特康普压缩机有限责任公司 | Piston compressor |
| CN107339218A (en) * | 2017-07-17 | 2017-11-10 | 李静茹 | A kind of high efficiency air compressor |
| CN109372720A (en) * | 2018-12-19 | 2019-02-22 | 李小冬 | Piston type pneumatic motor vacuum pump |
| CN116838574A (en) * | 2023-08-22 | 2023-10-03 | 烟台东德氢能技术有限公司 | Differential type circulating liquid seal compressor assembly |
-
2007
- 2007-04-10 CN CNU2007200116569U patent/CN201027612Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200113A (en) * | 2011-01-21 | 2011-09-28 | 佛山市广顺电器有限公司 | Inverse V-shaped crank pressurization air charging equipment |
| CN102261317A (en) * | 2011-01-21 | 2011-11-30 | 佛山市广顺电器有限公司 | V-shaped compressor |
| CN102200113B (en) * | 2011-01-21 | 2014-07-16 | 佛山市广顺电器有限公司 | Inverse V-shaped crank pressurization air charging equipment |
| CN103748359A (en) * | 2011-06-14 | 2014-04-23 | 罗特康普压缩机有限责任公司 | Piston compressor |
| CN102758756A (en) * | 2012-07-18 | 2012-10-31 | 汉纬尔机械(上海)有限公司 | Commonly-used platform for double-row multistage compressor |
| CN102758756B (en) * | 2012-07-18 | 2015-04-15 | 汉纬尔机械(上海)有限公司 | Commonly-used platform for double-row multistage compressor |
| CN107339218A (en) * | 2017-07-17 | 2017-11-10 | 李静茹 | A kind of high efficiency air compressor |
| CN109372720A (en) * | 2018-12-19 | 2019-02-22 | 李小冬 | Piston type pneumatic motor vacuum pump |
| CN116838574A (en) * | 2023-08-22 | 2023-10-03 | 烟台东德氢能技术有限公司 | Differential type circulating liquid seal compressor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20130410 |