CN201593495U - Air pump lubricated without oil - Google Patents
Air pump lubricated without oil Download PDFInfo
- Publication number
- CN201593495U CN201593495U CN2010201014865U CN201020101486U CN201593495U CN 201593495 U CN201593495 U CN 201593495U CN 2010201014865 U CN2010201014865 U CN 2010201014865U CN 201020101486 U CN201020101486 U CN 201020101486U CN 201593495 U CN201593495 U CN 201593495U
- Authority
- CN
- China
- Prior art keywords
- air pump
- piston
- cylinder
- piston ring
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 Teflon® Polymers 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 241000209456 Plumbago Species 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 101100321457 Arabidopsis thaliana ZHD8 gene Proteins 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010105 thermoset forming Methods 0.000 description 1
Images
Abstract
The utility model discloses an air pump lubricated without oil, which relates to an air pump structure. The air pump lubricated without oil is composed of a machine seat, a motor, an eccentric shaft sleeve, a link piston, a piston ring, a piston cylinder and an air supplying chamber. The utility model is characterized in that the outer edge of a low-half circle of a circle disk body of the eccentric shaft sleeve is convex upward to spread into a fan block of which the upper flat surface and the lower flat surface are flat to the circle disk body; the fan spreading volume satisfies the following condition: the total center of gravity of the eccentric shaft sleeve is on the shaft axis of an eccentric hole. The utility model has the advantages of that the piston ring and the air cylinder both have self lubrication effect, so the air pump is wearproof; meanwhile, the hardness difference of the piston ring and the air cylinder is smaller than that of polytetrafluoroethylene and graphite rings and a steel cylinder, so the wearing amount can be reduced; meanwhile, the counterweight of an eccentric shaft has stable center of gravity, so the total air pump is not vibrated; and the wearing amount of a cylinder body and the piston ring is also reduced because the vibration is reduced.
Description
Technical field:
The utility model relates to the air pump structure, particularly oil-free lubrication air pump piston cylinder structure.
Background technique:
The oil-free lubrication air pump is meant that piston motion does not use lubricant oil to be lubricated in the piston cylinder, and to guarantee that being compressed gas is not subjected to oil pollution, this air pump is mainly used in the dental drill power source, plasma cuts off machine source of the gas etc., especially being used on the micro air pump more.Its structure is combined in its lower end circular hole by bearing housing by the excentric sleeve of fit on horizontally disposed motor, the electric machine main shaft on support, the support, excentric sleeve projection eccentric shaft linkage type piston, linkage type piston top is made up of the air supply chamber of air inlet/outlet and unidirectional plate valve with the fixing bowl-mouth shape piston ring of retainer ring, the piston cylinder, the piston cylinder upper end-hole fixed cover crossed belt that are fixed on the support top.
This air pump connecting rod formula piston lower link circular hole end motion track is a circular movement, and upper piston is confined to move up and down as straight line in the piston cylinder, thereby integral body is to do oscillating motion.Its piston ring is then done beat motion, thereby little when big when its outer and piston cylinder surface of contact, then requires piston ring elasticity big.Greatly then hardness is just little, not wear-resisting for general piston ring elasticity, and the two has both difficult, and what use at present is piston ring by teflon, plumbago, Bond three thermosetting compression molding.Though because wear-resisting, the good springiness of this piston ring, hardness is little, and steel piston cylinder hardness is big, the two difference of hardness is apart from big more, and then the material that hardness is little is easy more is worn, and wear extent is also big more fast more.So piston ring scuffing is fast, the life-span is short.
The excentric sleeve structure is cam pin of projection on the disc in addition, the disc lower semi-circle is provided with eccentric opening and electric machine main shaft fit, and fastening by offering vertical screw on the lower semi-circle with screw realization excentric sleeve and electric machine main shaft, disc upper semi-circle projection bearing pin is connected with linkage type piston bottom circular hole by the fit bearing.Because the centre-of gravity shift vibration is big, influence air pump working life during the motion of this excentric sleeve.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and a kind of oil-free lubrication air pump is provided.
Scheme of the present utility model is: extend to outer lug and sector unit in excentric sleeve disc lower semi-circle outer, lower plane is concordant with disc on the sector unit, and fan-shaped extension volume meets the following conditions: the whole center of gravity of the excentric sleeve of formation is positioned on the eccentric opening shaft axis.
Advantage of the present utility model is: piston ring and cylinder all have self-lubricating effect, so it is wear-resisting, piston ring and the two hardness difference of cylinder are much smaller with respect to the hardness difference between teflon, graphite annulus and the steel cylinder simultaneously, so can reduce wear extent, the excentric sleeve counterweight is able to stable gravity center simultaneously, complete machine does not vibrate, because the decay of vibration has also reduced cylinder body and wear of piston-rings amount.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Embodiment:
Structure of the present utility model is made up of support 1, motor 6, excentric sleeve 3, linkage type piston 4, piston ring, piston cylinder, air supply chamber 5; It is characterized in that: extend to outer lug and sector unit 2 in excentric sleeve 3 disc lower semi-circle outers, lower plane is concordant with disc on the sector unit 2, and fan-shaped extension volume meets the following conditions: the excentric sleeve 3 whole centers of gravity of formation are positioned on the eccentric opening shaft axis.
The purpose that excentric sleeve 3 extension sector units 2 are positioned on the eccentric opening shaft axis its center of gravity is: do not produce centrifugal force when making excentric sleeve 3 rotations, thereby can not cause vibration.
The piston cylinder material is an aluminum alloy 6061, through anodizing; Piston ring is by teflon, copper powder thermosetting compression molding, and filling a prescription is teflon 80～90% and copper powder 10～20%.
The piston cylinder material adopts aluminum alloy 6061, and aluminum alloy 6061 main alloy element are magnesium and silicon, has moderate strength, good corrosion resistance, weldability, and oxidation effectiveness is good.Its hardness is about HB30～35, and is littler and wear-resisting than steel cylinder hardness, and through anodizing, any surface finish is flat near the mirror open fire, reduces hardness and also reduced friction factor.Because copper powder is than graphite hardness height, in the piston ring teflon and copper powder proportioning then than with plumbago proportioning thermoset forming after, obviously hardness has improved.Cylinder hardness reduces and the raising of piston ring hardness, and hardness is drawn close mutually between the two, and its hardness difference greatly reduces with respect to the cylinder and piston ring hardness difference of prior art material, has reduced wear extent.
Claims (1)
1. an oil-free lubrication air pump is made up of support (1), motor (6), excentric sleeve (3), linkage type piston (4), piston ring, piston cylinder, air supply chamber (5); It is characterized in that: extend to outer lug and sector unit (2) in excentric sleeve (3) disc lower semi-circle outer, it is concordant with disc that sector unit (2) is gone up lower plane, and fan-shaped extension volume meets the following conditions: the whole center of gravity of the excentric sleeve of formation (3) is positioned on the eccentric opening shaft axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201014865U CN201593495U (en) | 2010-01-25 | 2010-01-25 | Air pump lubricated without oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201014865U CN201593495U (en) | 2010-01-25 | 2010-01-25 | Air pump lubricated without oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593495U true CN201593495U (en) | 2010-09-29 |
Family
ID=42775561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201014865U Expired - Fee Related CN201593495U (en) | 2010-01-25 | 2010-01-25 | Air pump lubricated without oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593495U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208493A (en) * | 2016-07-22 | 2016-12-07 | 佛山市顺德区键合电子有限公司 | A kind of motor shaft is fixed and support system |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN108291640A (en) * | 2015-11-24 | 2018-07-17 | Nvb推进国际有限公司 | A kind of piston-chamber combination |
| CN115284024A (en) * | 2022-08-01 | 2022-11-04 | 超同步股份有限公司 | Auxiliary supporting structure of rotary table |
-
2010
- 2010-01-25 CN CN2010201014865U patent/CN201593495U/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN108291640A (en) * | 2015-11-24 | 2018-07-17 | Nvb推进国际有限公司 | A kind of piston-chamber combination |
| CN108291640B (en) * | 2015-11-24 | 2021-09-03 | Nvb推进国际有限公司 | Piston-chamber combination |
| CN106208493A (en) * | 2016-07-22 | 2016-12-07 | 佛山市顺德区键合电子有限公司 | A kind of motor shaft is fixed and support system |
| CN106208493B (en) * | 2016-07-22 | 2018-12-14 | 佛山市顺德区键合电子有限公司 | A kind of motor shaft is fixed and support system |
| CN115284024A (en) * | 2022-08-01 | 2022-11-04 | 超同步股份有限公司 | Auxiliary supporting structure of rotary table |
| CN115284024B (en) * | 2022-08-01 | 2023-09-05 | 超同步股份有限公司 | Auxiliary supporting structure of turntable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150105 Granted publication date: 20100929 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| DD01 | Delivery of document by public notice |
Addressee: Fujian Youdi Motor Manufacturing Co.,Ltd. Document name: Notice of preservation procedure |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160105 Granted publication date: 20100929 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20160105 Granted publication date: 20100929 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| DD01 | Delivery of document by public notice |
Addressee: Fujian Youdi Motor Manufacturing Co.,Ltd. Document name: Notice of preservation procedure Addressee: Fujian Youdi Motor Manufacturing Co.,Ltd. Document name: Notification of Termination of Procedure |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Fujian Youdi Motor Manufacturing Co.,Ltd. Document name: Notice of preservation procedure |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170105 Granted publication date: 20100929 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Fujian Youdi Motor Manufacturing Co.,Ltd. Document name: Notification of Termination of Patent Right Addressee: Fujian Youdi Motor Manufacturing Co.,Ltd. Document name: Notification of Termination of Procedure |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20150125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |