CN201705619U - Piston rod component of reliable oil-free air compressor - Google Patents
Piston rod component of reliable oil-free air compressor Download PDFInfo
- Publication number
- CN201705619U CN201705619U CN2010202788454U CN201020278845U CN201705619U CN 201705619 U CN201705619 U CN 201705619U CN 2010202788454 U CN2010202788454 U CN 2010202788454U CN 201020278845 U CN201020278845 U CN 201020278845U CN 201705619 U CN201705619 U CN 201705619U
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- China
- Prior art keywords
- piston ring
- air compressor
- piston
- free air
- pressing plate
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- Expired - Fee Related
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Abstract
The utility model discloses a piston rod component of a reliable oil-free air compressor, which comprises a connecting rod, wherein the bottom end of the connecting rod is eccentrically installed on a driving wheel of an air compressor through a bearing, a piston ring base is arranged at the top end of the connecting rod, a piston ring is sleeved on the piston ring base, the cross section of the piston ring is of a linear shape, the diameter of the cross section is larger than those of the piston ring base and a piston ring platen by 4mm to 8mm, and the piston ring is clamped on a piston base through the piston ring platen. The piston ring of the utility model adopts a forcibly press-in cylinder forming mode, not only the sealing contact of the piston ring and a cylinder wall is ensured, but also the strict requirement on the processing accuracy is avoided when a preformed L-shaped piston ring is adopted. In addition, the piston rod component of the oil-free air compressor provided by the utility model adopts a multi-step contact fixation mode to ensure the sealing connection of the piston ring and the piston ring base.
Description
Technical field
The utility model relates to a kind of air compressor, particularly a kind of reliable oil-free air compressor piston rod part.
Background technique
Air compressor has been widely used in the every field in our life, and is bringing into play important role.Need to use lubricant oil to give piston lubrication in the at present common air compressor work, sneak into problem in the pressurized air with regard to producing lubricated oil droplet or its steam inevitably in the compressor operating like this, this has just limited the application area of normal air compressor, and for example medical field just can not use the pressurized air of oil-containing.Like this, a kind of piston ring that uses special material to make replaces traditional metallic material piston, and the oil-free air compressor of cancellation lubricating fitting just arises at the historic moment.Yet exist certain problem in the design of the piston rod of this type of oilless compressor and piston ring on the market, for example fail to be connected and fixed well between piston rod and the piston ring, cause the air compressor rate of fault high; Failing excellent sealing between piston ring and the cylinder wall contacts, and causes air compressor not reach design performance.Like this, the structure of the piston rod part of improvement oil-free air compressor has just become the design focal point of oil-free air compressor.
Summary of the invention
In order to overcome existing oil-free air compressor in the technological deficiency aspect the piston rod part, the utility model provides a kind of improved piston ring and piston rod design to guarantee that piston ring is well secured with piston rod and to contact with cylinder seal.
The technical solution adopted in the utility model can be described as:
A kind of piston rod part of oil-free air compressor, comprise connecting rod, the connecting rod bottom is installed on the driving wheel of air compressor by bearing off-centre, described connecting rod top is provided with the piston ring seat, be set with piston ring on the piston ring seat, the cross section of piston ring is a yi word pattern, and its diameter is than the big 4mm～8mm of diameter of piston ring seat and piston ring pressing plate, and described piston ring is installed on the piston seat by the piston ring pressing plate.
As further improvement in the technical proposal, the outer of described piston ring pressing plate (4) is outward-dipping inclined-plane.
As further improvement in the technical proposal, described piston ring seat top is provided with the annular protrusion that is used for fixing piston ring, and described piston ring pressing plate bottom is provided with the annular groove that is complementary with piston ring seat top annular projection.
As further improvement in the technical proposal, described piston ring seat center is provided with circular groove, and described piston ring pressing plate center is provided with the circular protrusions that is complementary with piston ring seat central circular groove.
The beneficial effects of the utility model are:
It is the piston ring of yi word pattern that the piston rod part of the oil-free air compressor that the utility model proposes adopts cross section, compare with preformed L type piston ring, the piston ring of yi word pattern adopts the mode of forcing to be pressed into the cylinder moulding to guarantee that not only piston ring contacts with the sealing of cylinder wall, when also having avoided adopting preformed L type piston ring to the excessive demand of machining accuracy, and the outer of the piston ring pressing plate that adopts is outward-dipping inclined-plane, can more closely be pressed in piston ring on the cylinder inner wall, strengthen sealing.In addition, the piston rod part of the oil-free air compressor that the utility model proposes has adopted the means of fixation of multistage contact to guarantee closely fixing between piston ring, piston ring pressing plate and the piston ring seat three, has stopped the piston ring possibility of superior displacement in the horizontal direction.These two features have guaranteed to adopt the Performance And Reliability of the oil-free air compressor of this piston rod part.
Description of drawings
Fig. 1 is a structure broken away view of the present utility model;
Fig. 2 is a piston ring pressing plate sectional view of the present utility model;
Fig. 3 is a piston ring sectional view of the present utility model;
Fig. 4 is a piston ring seat sectional view of the present utility model.
Embodiment
As shown in Figure 1, be an embodiment of the present utility model, comprise connecting rod 1, connecting rod 1 bottom is installed on the driving wheel of air compressor by bearing off-centre, described connecting rod 1 top is provided with piston ring seat 2, is set with piston ring 3 on the piston ring seat 2, and the diameter of piston ring 3 is than the big 4mm～8mm of diameter of piston ring seat 2 and piston ring pressing plate 4, cross section is a yi word pattern, and described piston ring 3 is installed on the piston seat 2 by piston ring pressing plate 4.After the described piston rod part assembling, be pressed in the cylinder by cylinder top, under the acting in conjunction of piston ring seat 2, piston ring pressing plate 4 and cylinder wall, piston ring 3 cross sections are bent to the L type in cylinder, and because outward-dipping inclined-plane has been adopted in the outer of piston ring pressing plate 4, piston ring 3 is pressed on cylinder inner wall, and this structure has guaranteed that not only piston ring contacts with the sealing of cylinder wall, when also having avoided adopting preformed L type piston ring to the excessive demand of machining accuracy.
Described piston ring seat 2 tops are provided with the annular protrusion 21 that is used for fixing piston ring 3 in addition, and described piston ring pressing plate 4 bottoms are provided with the annular groove 41 that is complementary with annular protrusion 21, and piston ring 3 possibility of superior displacement has in the horizontal direction been stopped in this way of contact.
In addition, described piston ring seat 2 centers are provided with circular groove 22, described piston ring pressing plate 4 centers are provided with the circular protrusions 42 that is complementary with circular groove 22, and this way of contact has successfully guaranteed any Horizontal displacement can not occur between piston ring seat 2 and the piston ring pressing plate 4.
Certainly, the invention is not limited to above-mentioned embodiment, and other equivalent also should be within protection domain of the present utility model.
Claims (6)
1. reliable oil-free air compressor piston rod part, it is characterized in that: comprise connecting rod (1), connecting rod (1) bottom is installed on the driving wheel of air compressor by bearing off-centre, described connecting rod (1) top is provided with piston ring seat (2), be set with piston ring (3) on the piston ring seat (2), the diameter of piston ring (3) is than the big 4mm～8mm of diameter of piston ring seat (2) and piston ring pressing plate (4), and described piston ring (3) is installed on the piston seat (2) by piston ring pressing plate (4).
2. a kind of reliable oil-free air compressor piston rod part according to claim 1, it is characterized in that: the cross section of described piston ring (3) is a yi word pattern.
3. a kind of reliable oil-free air compressor piston rod part according to claim 1, it is characterized in that: the outer of described piston ring pressing plate (4) is outward-dipping inclined-plane.
4. a kind of reliable oil-free air compressor piston rod part according to claim 1 is characterized in that: described piston ring seat (2) top is provided with the annular protrusion (21) that is used for fixing piston ring (3).
5. a kind of reliable oil-free air compressor piston rod part according to claim 4 is characterized in that: described piston ring pressing plate (4) bottom is provided with the annular groove (41) that is complementary with annular protrusion (21).
6. a kind of reliable oil-free air compressor piston rod part according to claim 1, it is characterized in that: described piston ring seat (2) center is provided with circular groove (22), and described piston ring pressing plate (4) center is provided with the circular protrusions (42) that is complementary with circular groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202788454U CN201705619U (en) | 2010-08-03 | 2010-08-03 | Piston rod component of reliable oil-free air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202788454U CN201705619U (en) | 2010-08-03 | 2010-08-03 | Piston rod component of reliable oil-free air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705619U true CN201705619U (en) | 2011-01-12 |
Family
ID=43442775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202788454U Expired - Fee Related CN201705619U (en) | 2010-08-03 | 2010-08-03 | Piston rod component of reliable oil-free air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705619U (en) |
Cited By (1)
| 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 |
-
2010
- 2010-08-03 CN CN2010202788454U patent/CN201705619U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 529000 Guangdong Province, Jiangmen city Pengjiang District mill Mulang Shi Road No. 6 Building 1-6 Patentee after: Kuaiyi (Jiangmen) Compressor Co., Ltd. Address before: 529000 Guangdong Province, Jiangmen city purple Vlei Road No. 15 Patentee before: Kuaiyi (Jiangmen) Compressor Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20150803 |
|
| EXPY | Termination of patent right or utility model |