CN105927506B - A kind of air compressor piston - Google Patents
A kind of air compressor piston Download PDFInfo
- Publication number
- CN105927506B CN105927506B CN201610485948.XA CN201610485948A CN105927506B CN 105927506 B CN105927506 B CN 105927506B CN 201610485948 A CN201610485948 A CN 201610485948A CN 105927506 B CN105927506 B CN 105927506B
- Authority
- CN
- China
- Prior art keywords
- piston
- air compressor
- pin
- connecting rod
- bar portion
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0022—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0436—Iron
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/06—Polyamides, e.g. NYLON
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention relates to a kind of air compressor pistons, the connecting rod in the piston is inserted into including piston and one end, perforative through-hole is respectively equipped in the piston and in the connecting rod, one piston pin passes through the through-hole, the piston pin is the cylindrical body of inner hollow and both ends open, and the both ends of the piston pin are respectively equipped with retaining ring.In the present invention; two retaining rings can stop piston pin to move along axial; ensure the connection of piston and connecting rod; and without opening up groove in internal piston; also it falls off the risk in piston there is no circlip pin; to improve the safety that air compressor piston uses, the service life of air compressor piston is extended.
Description
Technical field
The present invention relates to field of air compressor, in particular to a kind of air compressor piston.
Background technique
Air compressor machine, i.e. air compressor (English are as follows: air compressor), are a kind of equipment to compressed gas,
It is the device that the mechanical energy of former dynamic (usually motor) is converted into gas pressure energy.Air compressor machine would generally in compressed air
Piston is used, the structure of the piston generally comprises piston and connecting rod, and piston is fixed on by a piston pin in one end of the connecting rod
Inside in order to ensure piston pin will not be detached from out of described piston, is then needed in piston to realize the connection of piston and connecting rod
Groove is set at the interior position with the piston pin contacts, circlip pin is set in groove, to limit piston pin in piston
Movement.But the circlip pin is after the multiple movement of piston, it is possible to can fall off from groove, cause significant mechanical event
Barrier；In addition, circlip pin can shorten the service life of piston with piston pin friction.
Summary of the invention
The present invention provides a kind of air compressor piston, and to solve, the circlip pin in existing air compressor piston is easy to fall off, piston
The short problem of service life.
In order to solve the above technical problems, the present invention provides a kind of air compressor piston, including the work is inserted into piston and one end
Connecting rod in plug is respectively equipped with perforative through-hole in the piston and in the connecting rod, a piston pin passes through the through-hole, described
Piston pin is the cylindrical body of inner hollow and both ends open, and the both ends of the piston pin are respectively equipped with retaining ring.
Preferably, the retaining ring includes head interconnected and bar portion, the internal diameter mistake of the bar portion and the piston pin
It is full of cooperation, the internal diameter clearance fit on the head and the through-hole.
Preferably, the bar portion is also hollow structure, and bar wall is equipped at least two axially disposed through slots, described
Through slot runs through the entire bar portion.
Preferably, at least two through slots are uniformly arranged on the bar wall.
Preferably, the head and the bar portion are integrally formed.
Preferably, the flush with outer surface on the head and the piston.
Preferably, the piston pin is made of iron, the retaining ring is made of nylon material.
Preferably, the outer surface of the piston is equipped with three circumferentially arranged ring grooves, divide in the ring groove
It She You not sealing ring.
Compared with prior art, air compressor piston provided by the invention is inserted into the piston including piston and one end
Connecting rod, is respectively equipped with perforative through-hole in the piston and in the connecting rod, a piston pin passes through the through-hole, the piston pin
For inner hollow and the cylindrical body of both ends open, the both ends of the piston pin are respectively equipped with retaining ring.In the present invention, two retaining rings can
Piston pin is stopped to move along axial, it is ensured that the connection of piston and connecting rod, and without opening up groove in internal piston, also it is not present
The circlip pin risk in piston that falls off to improve the safety that piston uses extends the service life of piston.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the air compressor piston of the embodiment of the invention.
In figure: 10- piston, 11- through-hole, 12- annular groove, 13- sealing ring, 20- connecting rod, 30- piston pin, 40- retaining ring,
The head 41-, 42- bar portion, 43- through slot.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.It should be noted that attached drawing of the present invention is all made of simplified form and uses non-essence
Quasi- ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Air compressor piston provided by the invention, as shown in Figure 1, including that the company in the piston 10 is inserted into piston 10 and one end
Bar 20 is respectively equipped with perforative through-hole 11 in the piston 10 and in the connecting rod 20, and a piston pin 30 passes through the through-hole 11,
The piston pin 30 is the cylindrical body of inner hollow and both ends open, and the both ends of the piston pin 30 are respectively equipped with retaining ring 40.This
In invention, two retaining rings 40 can stop piston pin 30 to move along axial, it is ensured that the connection of piston 10 and connecting rod 20, and be not necessarily to
Groove is opened up inside piston 10, also there is no the risks that circlip pin falls off in piston 10, to improve the peace that piston uses
Quan Xing extends the service life of piston.
Preferably, with continued reference to FIG. 1, the retaining ring 40 includes head 41 interconnected and bar portion 42, preferably, institute
It states head 41 and the bar portion 42 is integrally formed, production is simple, is connected firmly.Wherein, the bar portion 42 and the piston pin 30
Internal diameter interference fit, the internal diameter clearance fit on the head 41 and the through-hole 11.That is, the insertion of bar portion 42 is lived
The hollow portion of plug pin 30, realization retaining ring 40 are fixedly connected with piston pin 30, meanwhile, head 41 and 11 clearance fit of through-hole, just
In the maintenance disassembly or replacement of retaining ring 40.In addition, the flush with outer surface on the head 41 and the piston 10, it is ensured that appearance is whole
It is clean, and operator can judge whether retaining ring 40 closely connect with piston pin 30 according to appearance, if the prominent piston 10 in head 41
Outer surface then needs to be adjusted or replace components.
Preferably, with continued reference to FIG. 1, the bar portion 42 of the retaining ring 40 is also hollow structure, and bar wall is equipped at least
Two axially disposed through slots 43, the through slot 43 is in the entire bar portion 42, the present embodiment, the number of the through slot 43
Amount is two, and two through slots 43 are uniformly arranged on the bar wall, in this way, can do the outer diameter of the bar portion 42 when production
Greater than piston pin 30 internal diameter, when retaining ring 40 is inserted into piston pin 30, bar portion 42 due to through slot 43 effect, to contract,
While facilitating installation, bar portion 42 understands the inner wall to piston pin 30 with sufficiently large support force, further ensures that retaining ring 40 and lives
Plug pin 30 closely connects, and will not fall off.
Preferably, the piston pin 30 is made of iron, it is ensured that piston pin 30 is capable of providing enough hardness and wear resistance；Institute
It states retaining ring 40 and is made of nylon material, elasticity is good and when contacting with piston pin 30 and piston 10, is capable of providing enough frictions
Power.
Preferably, with continued reference to FIG. 1, the outer surface of the piston 10 is equipped with three circumferentially arranged ring grooves
12, sealing ring 13 is respectively equipped in the ring groove 12, it is ensured that leakproofness and wearability when pistons work further extend
The service life of air compressor piston.
In conclusion air compressor piston provided by the invention, is inserted into the company in the piston 10 including piston 10 and one end
Bar 20 is respectively equipped with perforative through-hole 11 in the piston 10 and in the connecting rod 20, and a piston pin 30 passes through the through-hole 11,
The piston pin 30 is the cylindrical body of inner hollow and both ends open, and the both ends of the piston pin 30 are respectively equipped with retaining ring 40.This
In invention, two retaining rings 40 can stop piston pin 30 to move along axial, it is ensured that the connection of piston 10 and connecting rod 20, and be not necessarily to
Groove is opened up inside piston 10, also there is no the risks that circlip pin falls off in piston 10, so that improving air compressor piston makes
Safety extends the service life of air compressor piston.
Obviously, those skilled in the art can carry out various modification and variations without departing from spirit of the invention to invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the invention is also intended to include including these modification and variations.
Claims (6)
1. a kind of air compressor piston, the connecting rod in the piston is inserted into including piston and one end, in the piston and the connecting rod
It is inside respectively equipped with perforative through-hole, a piston pin passes through the through-hole in piston and in connecting rod, which is characterized in that the piston
Pin is the cylindrical body of inner hollow and both ends open, and the both ends of the piston pin are respectively equipped with retaining ring, and the retaining ring includes mutual
The internal diameter of the head of connection and bar portion, the bar portion and the piston pin is interference fitted, described logical in the head and piston
The internal diameter clearance fit in hole, the bar portion is also hollow structure, and bar wall is equipped at least two axially disposed through slots, institute
It states through slot and runs through the entire bar portion.
2. air compressor piston as described in claim 1, which is characterized in that at least two through slots are uniform on the bar wall
Setting.
3. air compressor piston as described in claim 1, which is characterized in that the head and the bar portion are integrally formed.
4. air compressor piston as described in claim 1, which is characterized in that the flush with outer surface on the head and the piston.
5. air compressor piston as described in claim 1, which is characterized in that the piston pin is made of iron, and the retaining ring uses
Nylon material is made.
6. air compressor piston as described in claim 1, which is characterized in that the outer surface of the piston is equipped with three and circumferentially sets
The ring groove set is respectively equipped with sealing ring in the ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610485948.XA CN105927506B (en) | 2016-06-28 | 2016-06-28 | A kind of air compressor piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610485948.XA CN105927506B (en) | 2016-06-28 | 2016-06-28 | A kind of air compressor piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927506A CN105927506A (en) | 2016-09-07 |
| CN105927506B true CN105927506B (en) | 2019-02-15 |
Family
ID=56829172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610485948.XA Active CN105927506B (en) | 2016-06-28 | 2016-06-28 | A kind of air compressor piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927506B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0953564A (en) * | 1995-08-11 | 1997-02-25 | Anest Iwata Corp | Connecting rod small end part lubrication method for oil-free reciprocation compressor |
| KR100856798B1 (en) * | 2007-07-24 | 2008-09-05 | 삼성광주전자 주식회사 | A hermetic type compressor |
| JP4927067B2 (en) * | 2008-11-25 | 2012-05-09 | 株式会社日立産機システム | Piston ring for non-lubricated reciprocating compressor and reciprocating compressor using the same |
| CN201412302Y (en) * | 2009-06-03 | 2010-02-24 | 汪潜 | Piston reciprocating air compressor totally without oil lubrication |
| CN205841147U (en) * | 2016-06-28 | 2016-12-28 | 苏州鸿本机械制造有限公司 | A kind of air compressor piston |
-
2016
- 2016-06-28 CN CN201610485948.XA patent/CN105927506B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927506A (en) | 2016-09-07 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |