CN208966511U - A kind of compressor seal structure - Google Patents
A kind of compressor seal structure Download PDFInfo
- Publication number
- CN208966511U CN208966511U CN201821678269.5U CN201821678269U CN208966511U CN 208966511 U CN208966511 U CN 208966511U CN 201821678269 U CN201821678269 U CN 201821678269U CN 208966511 U CN208966511 U CN 208966511U
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- sealing ring
- cylinder
- seal
- compressor
- piston rod
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Abstract
The utility model discloses a kind of compressor seal structures, it includes driving motor, crankcase, piston rod seal, the first cylinder and the second cylinder, it include a seal chamber and retaining ring between piston rod seal, sealing ring and sealing ring are equipped in seal chamber, sealing ring and sealing ring are successively tightly disposed in seal chamber, sealing ring includes the first sealing ring and the second sealing ring, first sealing ring and the second sealing ring are oppositely arranged on the two sides of sealing ring, the side of first sealing ring is equipped with flaring, and the side and middle part of the second sealing ring are equipped with flaring.By enhancing the transformation of sealing structure the leakproofness of compressor piston rod, avoids the lubricating oil in crankcase and enter cylinder, while the gas in cylinder being prevented to enter crankcase.Improve the stability of compressor.
Description
Technical field
The utility model belongs to compressor field, more particularly, to a kind of compressor seal structure.
Background technique
Common air compressor domestic at present is mainly piston compressor, its working principle is that direct compressed gas,
It being discharged after gas reaches certain pressure, some gases are different from other gases, and it is very high to seal request, it is not allow for letting out
It is larger to deposit amplitude of fluctuation during exercise more for leakage, existing piston compressor, so that sealing is less reliable.
The piston rod of existing compressor essentially throttles and seals, and sealing ring is placed in sealing shroud, compresses sealing, cannot be complete
All risk insurance demonstrate,proves No leakage, after long working, due to seal wears, is easy gas leakage.
Utility model content
In order to solve the problems of the above-mentioned prior art, the utility model proposes a kind of compressor seal structure,
Piston rod two sides can be sealed, abrasion is effectively reduced, guarantee the sealing performance of piston rod.
The technical solution of the utility model is achieved in that
A kind of compressor seal structure comprising driving motor, crankcase, piston rod seal, the first cylinder and
Two cylinders, are provided with crankshaft connecting rod system in the crankcase, and the crankshaft connecting rod system includes crankshaft, major part watt, connecting rod, small
Head watt and crosshead, the crankcase is interior to be equipped with slideway, and the crosshead and microcephaly watt are arranged in the slideway, and described first
It include piston rod and piston in cylinder and the second cylinder, the microcephaly watt is connected with piston rod by the crosshead, the drive
Dynamic motor is connect with the crankshaft, which is characterized in that includes a seal chamber and retaining ring, institute between the piston rod seal
It states and is equipped with sealing ring and sealing ring in seal chamber, the sealing ring and sealing ring are successively tightly disposed in the seal chamber, institute
Stating sealing ring includes the first sealing ring and the second sealing ring, and the side of first sealing ring is equipped with flaring, second sealing
The side and middle part of circle are equipped with flaring, and elastic piece, the sealing ring, sealing ring and elastic piece are additionally provided in the seal chamber
It is locked in the seal chamber by the retaining ring.
In this compressor seal structure of the utility model, first cylinder and the second cylinder are equipped with air valve,
The air valve includes intake valve and air outlet valve.
In this compressor seal structure of the utility model, the intake valve and exhaust valve circular array are described
On first cylinder and the second cylinder.
In this compressor seal structure of the utility model, the piston is equipped with support ring, and the support ring is set
There is trapeze cut.
In this compressor seal structure of the utility model, it is equipped between the crankcase and piston rod seal
Scrape food tray.
In this compressor seal structure of the utility model, the volume of first cylinder is less than second cylinder
Volume.
This compressor seal structure for implementing the utility model, has the advantages that by sealing structure
It is transformed to enhance the leakproofness of compressor piston rod, avoids the lubricating oil in crankcase and enter cylinder, while preventing cylinder
Interior gas enters crankcase.Improve the stability of compressor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this compressor seal structure of the utility model；
Fig. 2 is that the structure of air valve is omitted to diagrammatic cross-section in A-A in Fig. 1；
Fig. 3 is crankcase schematic diagram of internal structure in Fig. 1；
Fig. 4 is the schematic internal view of piston rod seal in Fig. 1；
Fig. 5 is the portion the A enlarged diagram of Fig. 4；
Fig. 6 is the B-B direction diagrammatic cross-section of Fig. 2；
Fig. 7 is the C-C of Fig. 2 to diagrammatic cross-section.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
This compressor seal structure of the utility model as shown in Figures 1 to 7, including driving motor 11, crankcase
12, piston rod seal 13, the first cylinder 14 and the second cylinder 15 are provided with crankshaft connecting rod system 16 in crankcase 12, bent
Axis link mechanism 16 includes crankshaft 161, major part watt 162, connecting rod 163, microcephaly watt 164 and crosshead 165, is equipped in crankcase 12
Slideway 121, crosshead 165 and microcephaly watt 164 are arranged in slideway 121, include piston in the first cylinder 14 and the second cylinder 15
Bar 141 and piston 142, microcephaly watt 164 and piston rod 141 are connected by crosshead 165, and driving motor 11 is connect with crankshaft 161.
Drive crankshaft connecting rod system 16 to rotate by driving motor 11, to be moved back and forth in cylinder with piston 142, realize into
Gas, compression, exhaust process.
In the present embodiment, it is designed with air valve 151 on the first cylinder 14 and the second cylinder 15, air valve includes intake valve 152
With air outlet valve 153, intake valve 152 and 153 circular array of exhaust valve are on the first cylinder 14 and the second cylinder 15.First cylinder
Volume of 14 volume less than the second cylinder 15.The intake valve of the exhaust valve of first cylinder 14 and the second cylinder 15 is connected by pipeline
Logical, the gas compressed in the first cylinder 14 enters in the second cylinder 15, carries out two-stage compression, using two-stage compression structure,
Under Same Efficieney, than the tolerance of the more 10%-20% of air compressor of single stage compress.In other words, in the case where compressing same tolerance,
Two-stage compression can averagely save the power of 5-8% than single stage compress.In addition, it is reasonable to realize using two groups of cylinders of different sizes
Pressure distribution, each compression ratio is reduced, simultaneously as the area of second piston subtracts than the area of single-stage compressor piston
Small, piston stress is reduced by, and the power for acting on crankshaft connecting rod system 16 also reduces, and has correspondingly improved the safety of operating.
In the present embodiment, it is equipped between crankcase 12 and piston rod seal 13 and scrapes food tray 131.Protrude into crankcase 12
Interior piston rod 141 can speckle with a large amount of lubricating oil at work, and when by scraping food tray 131, scraping food tray 131 can be by work
The lubricating oil of stopper rod 141 scrapes off, and greatly reduces the leakage of lubricating oil in crankcase 12.
Include a seal chamber 132 and retaining ring 133 between piston rod seal 13, is equipped with sealing ring in seal chamber 132
17 and sealing ring 18, sealing ring 17 and sealing ring 18 be successively tightly disposed in seal chamber 132, sealing ring 17 include first sealing
Circle 171 and second sealing ring 172, the side of the first sealing ring 171 are equipped with flaring 173, the side of the second sealing ring 172 and in
Portion is equipped with flaring 173.Elastic piece 19 is additionally provided in seal chamber 132, sealing ring 17, sealing ring 18 and elastic piece 19 pass through locking
Ring 133 is locked in seal chamber 132, and sealing ring 18 and sealing ring 17 are locked at the side of elastic piece 19 by retaining ring 132,
So that sealing ring 17 and sealing ring 18 have axial pre tightening force.It, can be in the side of sealing ring 17 and middle part setting flaring 173
The friction area between sealing ring 17 and piston rod 141 is reduced, reduces abrasion, while the flaring 173 of side can make sealing ring
17 have axial pre tightening force, and the flaring 173 at middle part makes sealing ring have radial tightening power, so that sealing ring 17 and piston rod
What is be bonded between 141 is closer, and will not generate gap due to sliding.Further prevent letting out for lubricating oil in crankcase 12
The infiltration of high pressure gas in leakage and cylinder.
Piston 142 is equipped with support ring 143, and support ring 143 is equipped with trapeze cut 144.Support ring 143 is used to support piston
142 weight, and operating face is provided between piston 142 and cylinder wall, the trapeze cut 144 on 143 surface of support ring is to reduce
Effect of the gas load to support ring 143, to extend 143 service life of support ring.Also support ring 143 and cylinder are reduced
Contact surface reduces abrasion.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, made any modification, equivalent replacement and improvement etc. should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of compressor seal structure comprising driving motor, crankcase, piston rod seal, the first cylinder and second
Cylinder is provided with crankshaft connecting rod system in the crankcase, and the crankshaft connecting rod system includes crankshaft, major part watt, connecting rod, microcephaly
Watt and crosshead, slideway is equipped in the crankcase, the crosshead and microcephaly watt are arranged in the slideway, first gas
It include piston rod and piston in cylinder and the second cylinder, the microcephaly watt is connected with piston rod by the crosshead, the driving
Motor is connect with the crankshaft, which is characterized in that described including a seal chamber and retaining ring between the piston rod seal
Sealing ring and sealing ring are equipped in seal chamber, the sealing ring and sealing ring are successively tightly disposed in the seal chamber, described
Sealing ring includes the first sealing ring and the second sealing ring, and the side of first sealing ring is equipped with flaring, second sealing ring
Side and middle part be equipped with flaring, be additionally provided with elastic piece in the seal chamber, the sealing ring, sealing ring and elastic piece are logical
The retaining ring is crossed to be locked in the seal chamber.
2. compressor seal structure according to claim 1, which is characterized in that set on first cylinder and the second cylinder
There is air valve, the air valve includes intake valve and air outlet valve.
3. compressor seal structure according to claim 2, which is characterized in that the intake valve and exhaust valve battle array in a ring
It is listed on first cylinder and the second cylinder.
4. compressor seal structure according to claim 1, which is characterized in that the piston is equipped with support ring, described
Support ring is equipped with trapeze cut.
5. compressor seal structure according to claim 1, which is characterized in that the crankcase and piston rod seal
Between be equipped with scrape food tray.
6. compressor seal structure according to claim 1, which is characterized in that the volume of first cylinder is less than described
The volume of second cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821678269.5U CN208966511U (en) | 2018-10-17 | 2018-10-17 | A kind of compressor seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821678269.5U CN208966511U (en) | 2018-10-17 | 2018-10-17 | A kind of compressor seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966511U true CN208966511U (en) | 2019-06-11 |
Family
ID=66759551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821678269.5U Active CN208966511U (en) | 2018-10-17 | 2018-10-17 | A kind of compressor seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966511U (en) |
-
2018
- 2018-10-17 CN CN201821678269.5U patent/CN208966511U/en active Active
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