CN203098200U - Mini-type full oil-free lubrication high pressure oxygen compressor - Google Patents
Mini-type full oil-free lubrication high pressure oxygen compressor Download PDFInfo
- Publication number
- CN203098200U CN203098200U CN 201320064422 CN201320064422U CN203098200U CN 203098200 U CN203098200 U CN 203098200U CN 201320064422 CN201320064422 CN 201320064422 CN 201320064422 U CN201320064422 U CN 201320064422U CN 203098200 U CN203098200 U CN 203098200U
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- China
- Prior art keywords
- pressure stage
- low pressure
- piston
- high pressure
- cylinder
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- Expired - Lifetime
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000001301 oxygen Substances 0.000 title claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 20
- 238000005461 lubrication Methods 0.000 title claims abstract description 18
- 239000004519 grease Substances 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 12
- 239000004809 Teflon Substances 0.000 claims description 9
- 229920006362 Teflon® Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 210000000707 wrist Anatomy 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The utility model provides a mini-type full oil-free lubrication high pressure oxygen compressor which is small in size, light in weight, low in operating and maintaining cost, high in safety performance and capable of being widely used on the occasions of various harsh environment conditions. The mini-type full oil-free lubrication high pressure oxygen compressor comprises a crankcase. Two end of the crankcase are provided with two main bearings which are coaxial. A built-up crank is arranged between the two main bearings. The crankcase is further provided with at least two sets of compressing devices. Each compressing device comprises a guiding cylinder, a low pressure level cylinder and a high pressure level cylinder which are sequentially arranged at the top of the crankcase. A guiding piston is installed in each guiding cylinder through a piston pin. Each low pressure level cylinder comprises a sealing device arranged on the lower portion of the low pressure level cylinder and a low pressure level piston arranged on a piston rod. A low pressure level piston ring is arranged on the circumference of each low pressure level piston. A high pressure level piston is arranged in the portion, where each low pressure level cylinder is combined with one high pressure level cylinder, of a cavity body. The main bearings, a crank bearing and a self-aligning bearing are lubricated by grease and provided with sealing rings respectively.
Description
Technical field
The utility model relates to oxygen compressor, is specifically related to a kind of full-oil-free lubrication reciprocating piston hyperbaric oxygen air compressor.
Background technique
The exhaust pressure of hyperbaric oxygen air compressor generally more than 15MPa, is mainly used in and dashes bottle.With regard to the oxygen medium, itself have combustion-supporting property, if be compressed into high-temperature high-pressure state, run into any greasy dirt, spark can fire immediately, be in extreme danger; Present stage domestic widely used be membrane compressor.This type is made up of lubricating oil system and air-channel system two-part, and theoretically, oil circuit and gas circuit are separate, but just in case machine breaks down, oil may be scurried in the gas circuit.Therefore, diaphragm type hyperbaric oxygen air compressor all is to adopt expensive fluorocarbon oil (fluorocarbon oil and oxygen do not react) as lubricated driven medium, its operating cost height; Moreover because of it has two cover system collaborative works, volume of cylinder depends on the diaphragm deformation amount, causes the diaphragm type machine volume big, and weight is big, and stock utilization is low; In addition, machine generally adopts water cooling, uses diaphragm type machine all very inconvenient in extremely frigid zones, water-deficient area, space finite region, and expense is too high.
For the dynamic movement parts is the piston type hyperbaric oxygen air compressor of thin oil lubricant, exists lubricant oil to enter the risk of cylinder equally; In order to prevent danger, generally be designed to the intermediate isolating segment structure, the physical dimension of the machine that so just extended has also increased weight simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of miniature full-oil-free lubrication hyperbaric oxygen air compressor, and volume is little, and is in light weight, and operation and maintenance cost is low, and the Safety performance height can be widely used in the occasion of various environmental conditions harshnesses.
For achieving the above object, miniature full-oil-free lubrication hyperbaric oxygen air compressor of the present utility model comprises crankcase, is provided with two coaxial main bearings at the two ends of crankcase, is provided with vuilt-up crankshaft between two main bearings; Also be provided with at least two cover compression sets on crankcase, vuilt-up crankshaft is provided with at least two corresponding with compression set respectively crankshaft bearings; Described compression set comprises guiding cylinder, low pressure stage cylinder and the high pressure stage cylinder that is installed in the crankcase top successively, and guiding cylinder, low pressure stage cylinder and high pressure stage cylinder inner cavity communicate; By wrist pin guide piston is installed in the guiding cylinder, wrist pin is connected with selfaligning bearing, and selfaligning bearing is connected with crankshaft bearing through connecting rod; The guide ring of teflon material is installed on the outer ring of guide piston, and guide piston top is equipped with piston rod; Described low pressure stage cylinder comprises sealer that is installed in its underpart and the low pressure stage piston that is installed on the piston rod, and the low pressure stage piston ring of teflon material is installed on the low pressure stage piston circumference; In the cavity of low pressure stage cylinder and high pressure stage cylinder bound fraction the high pressure stage piston is installed, the high pressure stage piston ring of teflon material is installed on the high pressure stage piston circumference; The low pressure stage gas outlet high-pressure unit gas inlet interior with being arranged on the high pressure stage cylinder that is arranged in the low pressure stage cylinder communicates; Described main bearing, crankshaft bearing and selfaligning bearing all adopt grease lubrication and have seal ring.
After having adopted technique scheme, in the compressor operating process, along with the rotation of vuilt-up crankshaft, drive link causes guide piston to move reciprocatingly, thereby drive low pressure stage piston and high pressure stage piston move reciprocatingly.Make and the volume generating period variation of low pressure stage cylinder and high pressure stage cylinder realize the compressed purpose of oxygen.Moving elements such as guide ring, low pressure stage piston ring, high pressure stage piston ring adopt the filled polytetrafluoroethylene made that possesses self-lubricating property, described main bearing, crankshaft bearing and selfaligning bearing all adopt grease lubrication and have seal ring, thereby there is not any liquid oil content in the utility model, thereby the Safety performance height, can be widely used in the occasion of various environmental conditions harshnesses.The utility model has adopted at least two cover compression sets, during actual the use, according to gas flow and pressure concrete condition, can be designed to one-level, secondary, three grades and level Four compression; Its volume of cylinder can be fully utilized, and volume is little, and is in light weight, and operation and maintenance cost is low.
Further, the utility model includes two cover compression sets, vuilt-up crankshaft comprises driving shaft that has crank throw and the driven shaft that has crank throw, the driving shaft chuck is installed on the crank throw of driving shaft, the driven shaft chuck is installed on the crank throw of driven shaft, driving shaft chuck and driven shaft chuck bound fraction intermesh, and two crankshaft bearings are installed in respectively on the crank throw of the crank throw of driving shaft and driven shaft.
After adopting technique scheme, vuilt-up crankshaft is set to demountable structure, and convenient production and maintenance further reduced user cost.
Description of drawings
Fig. 1 is the schematic representation of miniature full-oil-free lubrication hyperbaric oxygen air compressor of the present utility model;
Fig. 2 is the schematic representation of the vuilt-up crankshaft of miniature full-oil-free lubrication hyperbaric oxygen air compressor of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As Fig. 1, Fig. 2 as seen, miniature full-oil-free lubrication hyperbaric oxygen air compressor of the present utility model comprises crankcase 1, is provided with between two coaxial main bearings, 4, two main bearings 4 at the two ends of crankcase 1 and is provided with vuilt-up crankshaft 3; Also be provided with at least two cover compression sets 110 on crankcase 1, vuilt-up crankshaft 3 is provided with at least two corresponding with compression set 110 respectively crankshaft bearings 2; Described compression set 110 comprises guiding cylinder 10, low pressure stage cylinder 12 and the high pressure stage cylinder 17 that is installed in crankcase 1 top successively, and guiding cylinder 10, low pressure stage cylinder 12 and high pressure stage cylinder 17 inner chambers communicate; By wrist pin 7 guide piston 9 is installed in the guiding cylinder 10, wrist pin 7 is connected with selfaligning bearing 6, and selfaligning bearing 6 is connected with crankshaft bearing 2 through connecting rod 5; The guide ring 8 of teflon material is installed on the outer ring of guide piston 9, and guide piston 9 tops are equipped with piston rod 11; Described low pressure stage cylinder 12 comprises sealer 13 that is installed in its underpart and the low pressure stage piston 14 that is installed on the piston rod 11, and the low pressure stage piston ring 15 of teflon material is installed on low pressure stage piston 14 circumference; In the cavity of low pressure stage cylinder 12 and high pressure stage cylinder 17 bound fractions high pressure stage piston 16 is installed, the high pressure stage piston ring 18 of teflon material is installed on high pressure stage piston 16 circumference; The low pressure stage gas outlet 120 high-pressure unit gas inlet 170 interior with being arranged on high pressure stage cylinder 17 that is arranged in the low pressure stage cylinder 12 communicates, gas enters high pressure stage cylinder 17 again and further compresses after 12 compressions of low pressure stage cylinder, fully improve compression efficiency; Described main bearing 4, crankshaft bearing 2 and selfaligning bearing 6 all adopt grease lubrication and have seal ring.
In the technique scheme, adopt reciprocating piston type structure and oil-free lubrication mode, can be designed to air-cooled respectively or water-cooled.In the compressor operating process, along with the rotation of vuilt-up crankshaft 3, drive link 5 causes guide piston 9 to move reciprocatingly, thereby drive low pressure stage piston 14 and high pressure stage piston 16 move reciprocatingly.Make and the volume generating period variation of low pressure stage cylinder 12 and high pressure stage cylinder 17 realize the compressed purpose of oxygen.
Moving elements such as guide ring 8, low pressure stage piston ring 15, high pressure stage piston ring 18 adopt the filled polytetrafluoroethylene made that possesses self-lubricating property, described main bearing 4, crankshaft bearing 2 and selfaligning bearing 6 all adopt grease lubrication and have seal ring, thereby there is not any liquid oil content in the utility model, thereby the Safety performance height, can be widely used in the occasion of various environmental conditions harshnesses.Owing to has improved lubricating system, thereby do not needed the oil gas distance piece is set, thereby the utility model volume is little, the stock utilization height.The utility model has adopted at least two cover compression sets, during actual the use, according to gas flow and pressure concrete condition, can be designed to one-level, secondary, three grades and level Four compression; Its volume of cylinder can be fully utilized, and volume is little, and is in light weight, and operation and maintenance cost is low.
Further, described compression set 110 is two covers; Vuilt-up crankshaft 3 comprises driving shaft 31 that has crank throw and the driven shaft 32 that has crank throw, driving shaft chuck 310 is installed on the crank throw of driving shaft 31, driven shaft chuck 320 is installed on the crank throw of driven shaft 32, driving shaft chuck 310 and driven shaft chuck 320 bound fractions intermesh, and two crankshaft bearings 2 are installed in respectively on the crank throw of the crank throw of driving shaft 31 and driven shaft 32.
During assembling, earlier driving shaft 31 and driven shaft 32 are installed respectively, intermeshing driving shaft chuck 310 and driven shaft chuck 320 are installed again; With bolt two chucks are being individually fixed on the crank throw.
Claims (2)
1. a miniature full-oil-free lubrication hyperbaric oxygen air compressor comprises crankcase (1), it is characterized in that: be provided with two coaxial main bearings (4) at the two ends of crankcase (1), be provided with vuilt-up crankshaft (3) between two main bearings (4); Also be provided with at least two cover compression sets (110) on crankcase (1), vuilt-up crankshaft (3) is provided with at least two corresponding with compression set (110) respectively crankshaft bearings (2); Described compression set (110) comprises guiding cylinder (10), low pressure stage cylinder (12) and the high pressure stage cylinder (17) that is installed in crankcase (1) top successively, and guiding cylinder (10), low pressure stage cylinder (12) and high pressure stage cylinder (17) inner chamber communicate; By wrist pin (7) guide piston (9) is installed in the guiding cylinder (10), wrist pin (7) is connected with selfaligning bearing (6), and selfaligning bearing (6) is connected with crankshaft bearing (2) through connecting rod (5); The guide ring (8) of teflon material is installed on the outer ring of guide piston (9), and guide piston (9) top is equipped with piston rod (11); Described low pressure stage cylinder (12) comprises the sealer (13) that is installed in its underpart and is installed in low pressure stage piston (14) on the piston rod (11), the low pressure stage piston ring (15) of teflon material is installed on low pressure stage piston (14) circumference; In the cavity of low pressure stage cylinder (12) and high pressure stage cylinder (17) bound fraction high pressure stage piston (16) is installed, the high pressure stage piston ring (18) of teflon material is installed on high pressure stage piston (16) circumference; Low pressure stage gas outlet (120) the high-pressure unit gas inlet (170) interior with being arranged on high pressure stage cylinder (17) that is arranged in the low pressure stage cylinder (12) communicates; Described main bearing (4), crankshaft bearing (2) and selfaligning bearing (6) all adopt grease lubrication and have seal ring.
2. miniature full-oil-free lubrication hyperbaric oxygen air compressor according to claim 1, it is characterized in that: described compression set (110) is two covers; Vuilt-up crankshaft (3) comprises driving shaft (31) that has crank throw and the driven shaft (32) that has crank throw, driving shaft chuck (310) is installed on the crank throw of driving shaft (31), driven shaft chuck (320) is installed on the crank throw of driven shaft (32), driving shaft chuck (310) and driven shaft chuck (320) bound fraction intermesh, and two crankshaft bearings (2) are installed in respectively on the crank throw of the crank throw of driving shaft (31) and driven shaft (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064422 CN203098200U (en) | 2013-02-05 | 2013-02-05 | Mini-type full oil-free lubrication high pressure oxygen compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064422 CN203098200U (en) | 2013-02-05 | 2013-02-05 | Mini-type full oil-free lubrication high pressure oxygen compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098200U true CN203098200U (en) | 2013-07-31 |
Family
ID=48849607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320064422 Expired - Lifetime CN203098200U (en) | 2013-02-05 | 2013-02-05 | Mini-type full oil-free lubrication high pressure oxygen compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098200U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150385A (en) * | 2016-12-05 | 2018-06-12 | 张家港科康智能科技有限公司 | A kind of crank rod movement component of diaphragm type gas compressor |
| CN111577571A (en) * | 2020-06-22 | 2020-08-25 | 安庆市佰联无油压缩机有限公司 | Oil-free high-pressure oxygen compressor and device |
| CN112594153A (en) * | 2020-12-16 | 2021-04-02 | 浙江凯途科技有限公司 | Energy-saving gas oil-free compressor and multistage compression structure thereof |
-
2013
- 2013-02-05 CN CN 201320064422 patent/CN203098200U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150385A (en) * | 2016-12-05 | 2018-06-12 | 张家港科康智能科技有限公司 | A kind of crank rod movement component of diaphragm type gas compressor |
| CN111577571A (en) * | 2020-06-22 | 2020-08-25 | 安庆市佰联无油压缩机有限公司 | Oil-free high-pressure oxygen compressor and device |
| CN112594153A (en) * | 2020-12-16 | 2021-04-02 | 浙江凯途科技有限公司 | Energy-saving gas oil-free compressor and multistage compression structure thereof |
| CN112594153B (en) * | 2020-12-16 | 2023-08-15 | 浙江凯途机电有限公司 | Energy-saving gas oil-free compressor and multi-stage compression structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |