CN102094785B - Miniature piston air pump without oil lubrication - Google Patents
Miniature piston air pump without oil lubrication Download PDFInfo
- Publication number
- CN102094785B CN102094785B CN201110062192.5A CN201110062192A CN102094785B CN 102094785 B CN102094785 B CN 102094785B CN 201110062192 A CN201110062192 A CN 201110062192A CN 102094785 B CN102094785 B CN 102094785B
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- China
- Prior art keywords
- cylinder
- crosshead
- piston
- air pump
- oil
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- Expired - Fee Related
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 21
- 238000012856 packing Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 40
- 230000006835 compression Effects 0.000 abstract description 11
- 238000007906 compression Methods 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The invention relates to a miniature piston air pump without oil lubrication. The miniature piston air pump comprises a motor, an air storage tank, a crankshaft box, an air inlet and exhaust pipeline and a cylinder, wherein the cylinder comprises a crosshead slideway at the lower end, a sealing box body at the middle part, a cylinder at the upper part and an air inlet and exhaust device at the top; the lower end of a crosshead piston rod installed in the crosshead slideway is connected with the connecting rod of the crankshaft box, and the upper end of the crosshead piston rod is connected with a piston; and the middle part of the crosshead piston rod penetrates through a sealing filling assembly which is fixedly arranged on the sealing box body. Because the connecting structure of a crosshead and the piston rod and the sealing filling assembly are adopted, the miniature air pump provided by the invention achieves the purpose of compressing air without oil, and has the advantages that the air exhaust port of the air pump can not be carbonized, lubricating oil is saved, the ambient environment can not be polluted, reciprocating bidirectional compression can be realized, the efficacy of the air pump is enhanced, and the electricity is saved.
Description
Technical field
The present invention relates to piston type air compressor (air pump), particularly a kind of Miniature piston air pump without oil lubrication.
Background technique
Micro-piston-type air pump, also claims Miniature piston-type air compressor, because it is light and handy and conveniently moving, is used widely in the production fields such as industry.Micro-piston-type air pump conventional is at present as V-type reciprocating air pump, all adopt to have oil lubrication in their cylinder, the structure of every grade of cylinder is all connect connecting rod by the bent axle of crankcase, connecting rod directly connects piston body, piston body is provided with piston ring and scraper ring back and forth runs in the cylinder, only produces Uniaxial Compression.There is following shortcoming in this air pump: one is that consumption of lubricating oil is large, and these lubricant oil major parts are discharged from gas holder sewage draining exit, and small part is discharged along with gas, severe contamination surrounding enviroment; Two is that relief opening easily ties carbon, and the working life of air valve is short, and maintenance load is large; The most seriously easy oil starvation in crankcase, will burn cylinder because of carelessness, cause heavy losses.There is a kind of micro-piston-type air pump lubricated without oil at present, it reaches the object without oil in pressurized air, outlet valve can not tie carbon, but the structure of this micro-piston-type air pump lubricated without oil and above-mentionedly miniaturely have oil lubed piston formula air pump not have large change, just employ totally enclosed bearing at bent axle, connecting rod and connecting rod and piston body joint, the piston ring of self lubricating material has been installed on the piston body, scraper ring on piston body is changed into guide ring, has achieved in crankcase without oil work.But this micro-piston-type air pump lubricated without oil has a maximum shortcoming: make its stream time can not more than 16 hours because temperature raises, although because have employed advanced lubrication fat in bearing, but due to the particularity of compressor operating, the as easy as rolling off a log damage of bearing, cylinder also easily weares and teares, this is invisible too increases amount of maintenance and cost of production, so this piston type air pump lubricated without oil is difficult to promote.In addition, above-mentioned two kinds of reciprocating air pumps (air compressor), they are all Uniaxial Compressions, so their power consumption is also higher.
Summary of the invention
The object of this invention is to provide a kind of piston air pump without oil lubrication of new structure, in order to overcome the shortcoming that existing above-mentioned various micro air pump (air compressor) exists, miniature air pump lubricated without oil can be really used widely aborning.
The technological scheme of this Miniature piston air pump without oil lubrication is as follows
This Miniature piston air pump without oil lubrication, comprises motor, gas storage filling, crankcase and enters
Exhaust duct, has one-level cylinder and secondary cylinder, it is characterized in that above crankcase: described one-level cylinder and secondary cylinder, by the crosshead slipway of lower end, middle part
The cylinder on sealed letter body, top and the intake and exhaust device four part composition at top; Be arranged on cross
Crosshead piston bar, the crosshead part of its lower end and the connecting rod of crankcase in head slideway
Connect, upper end connects piston, can to-and-fro motion in the cylinder; Crosshead piston bar
Middle part, be set with stuffing box packing assembly, and stuffing box packing assembly is packed on sealed letter body.
This Miniature piston air pump without oil lubrication, the sealed letter body in cylinder block described in it, if
Lower intake and exhaust device is had to be communicated with cylinder.
This Miniature piston air pump without oil lubrication, the stuffing box packing assembly in sealed letter body described in it is made up of scraper ring, block ring, seal ring and guide ring, also can be made up of scraper ring, block ring and guide ring.
The effect of this Miniature piston air pump without oil lubrication is fairly obvious, owing to adopting crosshead and piston rod linking body structure, and be set with stuffing box packing assembly on the piston rod, to running from crankcase, the lubricant oil be attached on crosshead piston bar has carried out effective sealing, do not allow it enter in cylinder, thus reach the object without oil in pressurized air.The assembly of stuffing box packing simultaneously also has the function preventing cylinder compressed air from being leaked by piston rod refluence and being led to piston rod.Be communicated with cylinder owing to sealed letter body can be provided with lower intake and exhaust device, therefore can realize reciprocal bi-directional compression, effectively improve the usefulness of air pump, reach effect but also the object that can economize on electricity of not only effectively improve air pump; The consumption of lubricant oil and discharge is effectively prevented again to reach environmental protection object.
the present invention and originalminiature have oil lubed piston formula air pump to compare, first be save lubricant oil, as V-0.7/8 air pump, per hourly effectively can save lubricant oil 0.12 ㎏, lubricant oil 2.88 ㎏ can be saved every day, meanwhile, due to not oil-containing in pressurized air, the just water of discharging during gas holder blowdown, can not pollute surrounding enviroment; Second is economize on electricity, and reciprocating compression is per hour can using electricity wisely (motor for 4KW power) 1.36KW-1.8KW, is one and has obvious products that save energy and resources.In addition, the relief opening of air valve can not tie carbon, effectively improves air valve working life more than one times, effectively can reduce the operating cost of air pump.
Simultaneously its compact structure, is convenient to maintenance, conveniently moving, practical.
Accompanying drawing explanation
Figure mono-is the schematic appearance of Miniature piston air pump without oil lubrication of the present invention
Figure bis-is structural representations of Miniature piston air pump without oil lubrication of the present invention
Figure tri-is bi-directional compression cylinder schematic diagram of Miniature piston air pump without oil lubrication of the present invention
Figure tetra-is Uniaxial Compression cylinder schematic diagram of Miniature piston air pump without oil lubrication of the present invention
Figure five is schematic diagram of original Miniature piston air pump without oil lubrication
In figure five: crankcase 3 " connecting rod 31 " cylinder 53 "
Intake and exhaust device 54 " piston 55 "
Embodiment
Below by drawings and Examples, the invention will be further described.
embodiment one:
The present embodiment Miniature piston air pump without oil lubrication is bi-directional compression reciprocating air pump (accompanying drawings one, figure bis-, figure tri-), comprises motor 1, gas storage filling 2, crankcase 3 and intake and exhaust pipeline 4, has one-level cylinder 5 and secondary cylinder 6 above crankcase 1.Described one-level cylinder 5 identical with the structure of secondary cylinder 6 (accompanying drawings three), its cylinder block 5, is made up of intake and exhaust device 54 4 part at the crosshead slipway 51 of lower end, the sealed letter body 52 at middle part, the cylinder 53 on top and top, be arranged on the crosshead piston bar 57 in crosshead slipway 51, the crosshead part of its lower end is connected with the connecting rod 31 in crankcase 3, upper end connect can in cylinder 53 reciprocating piston 55, the middle part of crosshead piston bar 57, be set with stuffing box packing assembly 56, and stuffing box packing assembly 56 is packed on sealed letter body 52, it is by the Gland 561 installed from bottom to top, first stuffing box of in-built scraper ring 562, block ring 563, second filler of in-built seal ring 564 closes, block ring 565 and guide sleeve 566 formed, its function is by Gland 561, the scraper ring 562 that first filler closes, block ring 563 forms oil resistance, oil scraping mechanism stops the lubricant oil on piston rod 57 to enter in cylinder 53, by block ring 565, seal ring 564 during second filler closes forms choked flow, sealing mechanism stops pressurized air to leak, by block ring 563, 565 and guide sleeve 566 to form guide mechanism be that crosshead piston bar 57 leads.On the sealed letter body 52 of described cylinder block, be provided with intake and exhaust device 520 and be communicated with cylinder.When crosshead piston bar 57 is descending, cavity of resorption pressurized gas in cylinder 53 can not enter in crankcase 3, but enters the porting 523 of lower intake and exhaust room 521 and intake and exhaust pipeline 4 by lower air inlet and exhaust valve 522 and input and input in gas holder 2 through secondary compression in secondary cylinder 6; When crosshead piston bar 57 is up, the gas that crosshead slipway 51 inner chamber has can be discharged from the space at the return-air hole 571 crosshead and crosshead pin 572 two ends, do not produce any pressure, the pressurized gas in cylinder 53 is then entered in intake and exhaust room 541 to be inputted by porting 542 and intake and exhaust pipeline 4 by the upper air inlet and exhaust valve 540 of upper intake and exhaust device 54 and inputs in gas holder 2 through secondary compression in secondary cylinder 6;
The structure of secondary cylinder is substantially identical with one-level cylinder with working principle, repeats no more.
embodiment two:
The present embodiment Miniature piston air pump without oil lubrication is one-way fashion air pump (accompanying drawings one figure tetra-), comprise motor 1, gas storage filling 2, crankcase 3 and intake and exhaust pipeline 4, one-level cylinder 5 and secondary cylinder 6 is had above crankcase 1, described one-level cylinder 5 the same with the structure of secondary cylinder 6 (accompanying drawings four), its cylinder block 5, is made up of intake and exhaust device 54 ' four part at the crosshead slipway 51 ' of lower end, the sealed letter body 52 ' at middle part, the cylinder 53 ' on top and top; Be arranged on the crosshead piston bar 57 ' in crosshead slipway 51 ', the crosshead part of its lower end connects with the connecting rod 31 ' in crankcase 3, upper end connect can in cylinder 53 ' reciprocating piston 55 '; The middle part of crosshead piston bar 57 ', be set with stuffing box packing assembly 56 ', and stuffing box packing assembly 56 ' is packed on sealed letter body 52 ', it is made up of the Gland 561 ' installed from bottom to top, scraper ring 562 ' and guide ring 563 ', and its function stops the lubricant oil on crankcase 3 and crosshead piston bar 57 ' to enter in cylinder 53 '.
When crosshead piston bar 57 ' is up, the gas had in the crosshead slipway 51 ' inner chamber of crosshead piston bar bottom can be discharged from the space at the return-air hole 571 ' crosshead and crosshead pin 572 ' two ends, the pressurized gas produced in cylinder 53 ' then enters in enterprising exhaust chamber 542 ' by the air inlet and exhaust valve 541 ' of top intake and exhaust device 54 ', is input to inputs in gas holder 2 through secondary compression in secondary cylinder 6 by porting 543 ' and pipeline 4; When crosshead piston bar 57 ' is descending, the gas in cylinder 53 ' cavity of resorption is discharged by the exhaust port 524 ' of letting out on sealed letter body 52 ', does not produce any pressure.The structure of secondary cylinder is substantially identical with one-level cylinder with working principle, repeats no more.
Claims (2)
1. a Miniature piston air pump without oil lubrication, comprise motor, gas holder, crankcase and intake and exhaust pipeline, one-level cylinder and secondary cylinder is had above crankcase, it is characterized in that: described one-level cylinder and secondary cylinder, be made up of intake and exhaust device four part at the crosshead slipway of lower end, the sealed letter body at middle part, the cylinder on top and top; The crosshead piston bar be arranged in crosshead slipway is an integrated member, and the crosshead part of its lower end connects with the connecting rod of crankcase, and upper end connects can reciprocating piston in the cylinder; The middle part of crosshead piston bar, through a set of stuffing box packing assembly be packed on sealed letter body, described stuffing box packing assembly is made up of scraper ring, oil blocking ring, seal ring and guide sleeve, or is made up of scraper ring and guide ring.
2. Miniature piston air pump without oil lubrication according to claim 1, is characterized in that: described one-level cylinder and the sealed letter body in the middle part of secondary cylinder are provided with lower intake and exhaust room, lower air inlet and exhaust valve, lower port are communicated with the cylinder on top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110062192.5A CN102094785B (en) | 2011-03-16 | 2011-03-16 | Miniature piston air pump without oil lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110062192.5A CN102094785B (en) | 2011-03-16 | 2011-03-16 | Miniature piston air pump without oil lubrication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094785A CN102094785A (en) | 2011-06-15 |
| CN102094785B true CN102094785B (en) | 2015-04-08 |
Family
ID=44128013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110062192.5A Expired - Fee Related CN102094785B (en) | 2011-03-16 | 2011-03-16 | Miniature piston air pump without oil lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094785B (en) |
Families Citing this family (2)
| 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 |
| CN109372720A (en) * | 2018-12-19 | 2019-02-22 | 李小冬 | Piston type pneumatic motor vacuum pump |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB809499A (en) * | 1956-09-17 | 1959-02-25 | Gen Motors Corp | Improved reciprocatory gas compressor and pneumatic suspension system incorporating such compressor |
| US3692434A (en) * | 1970-11-02 | 1972-09-19 | Kohlenberger Inc | Fluid compressor apparatus |
| CN2255504Y (en) * | 1995-05-03 | 1997-06-04 | 机械工业部合肥通用机械研究所 | High-power whole-oil-less lubricating compressor |
| CN2261517Y (en) * | 1996-05-27 | 1997-09-03 | 赵振帮 | Oilless air compressor |
| CN2285830Y (en) * | 1996-05-30 | 1998-07-08 | 张应海 | Energy-saving air compressor driven by diesel engine directly |
| CN201096071Y (en) * | 2007-10-29 | 2008-08-06 | 卢高 | Oil-free lubrication reciprocating air compressor |
| CN201165955Y (en) * | 2008-01-25 | 2008-12-17 | 薛建国 | V type oil-free reciprocating vacuum pump |
| CN201560910U (en) * | 2009-11-10 | 2010-08-25 | 青岛光正机械设备制造有限公司 | Non-oil lubrication piston reciprocating type air compressor |
| CN201730788U (en) * | 2010-07-28 | 2011-02-02 | 合肥华大通用压缩机制造有限公司 | Oilless lubrication air compressor host |
-
2011
- 2011-03-16 CN CN201110062192.5A patent/CN102094785B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102094785A (en) | 2011-06-15 |
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Granted publication date: 20150408 Termination date: 20200316 |
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