CN209875416U - Novel high-pressure oil-free lubrication piston device - Google Patents
Novel high-pressure oil-free lubrication piston device Download PDFInfo
- Publication number
- CN209875416U CN209875416U CN201920363059.5U CN201920363059U CN209875416U CN 209875416 U CN209875416 U CN 209875416U CN 201920363059 U CN201920363059 U CN 201920363059U CN 209875416 U CN209875416 U CN 209875416U
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- piston
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- cylinder
- pressure oil
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Abstract
The utility model discloses a novel high pressure oil-free lubrication piston device, including the cylinder, cylinder one end fixed connection mounting panel, cylinder other end fixed connection piston pillar, the columniform one end fixed connection screw rod is kept away from to the piston pillar, it has a set of piston ring to overlap in the piston pillar outside, threaded connection piston nut on the screw rod, thereby press from both sides this set of piston ring tight between cylinder and piston nut, every piston ring one side all is equipped with annular recess, all be equipped with the off-load ring in two recesses that are closest to piston nut, the support ring is equipped with in a recess that is closest to the columniform, all be equipped with the sealing ring in all the other recesses. The utility model has the advantages that: the utility model provides a novel high pressure oil-free lubrication piston device through twice off-load ring, can reduce gas pressure step by step for the effect of sealing ring is better.
Description
Technical Field
The utility model relates to a compressor production technical field especially relates to a novel high pressure oil-free lubrication piston device.
Background
The cylinder and the piston are one of the important components of the compressor, play roles in compression and sealing and are important components for gas compression. The piston structure widely used at present is that a plurality of piston rings are arranged in a piston ring groove, the structure is not suitable for a high-pressure compressor, and the gas medium with strict gas quality requirement or incapable of being filled with oil cannot be used.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a novel high-pressure oil-free lubrication piston device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel high-pressure oil-free lubrication piston device is characterized in that: including the cylinder, cylinder one end fixed connection mounting panel, cylinder other end fixed connection piston pillar, the columniform one end fixed connection screw rod is kept away from to the piston pillar, it has a set of piston ring to overlap in the piston pillar outside, threaded connection piston nut on the screw rod, thereby press from both sides tight between cylinder and piston nut with this set of piston ring, every piston ring one side all is equipped with annular recess, all be equipped with the off-load ring in two recesses that are closest to piston nut, be equipped with the support ring in one recess that is closest to the columniform, all be equipped with the sealing ring in all the other recesses.
Preferably, a group of mounting holes are uniformly formed in the edge of the mounting plate.
Preferably, a circular positioning groove is formed in the center of one side, away from the cylinder, of the mounting plate.
Preferably, the unloading ring comprises a circular ring, an annular groove is formed in the outer ring wall of the circular ring, a group of unloading openings are uniformly formed in the edge of one end face of the circular ring, each unloading opening is communicated with the annular groove, an air guide opening is formed in the other end face of the circular ring and communicated with the annular groove, and the air guide opening extends from the outer ring of the circular ring to the inner ring of the circular ring.
The utility model has the advantages that: the utility model provides a novel high pressure oil-free lubrication piston device through twice off-load ring, can reduce gas pressure step by step for the effect of sealing ring is better.
Drawings
Fig. 1 is a schematic diagram of the basic structure of the present invention;
FIG. 2 is an exploded view of the basic structure of the present invention;
fig. 3 is a schematic structural view of the present invention without a slinger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1-3, the utility model provides a pair of novel high pressure oil-free lubrication piston device, including cylinder 1, 1 one end fixed connection mounting panel 2 of cylinder, the edge of mounting panel 2 evenly is equipped with four mounting holes 2.1. The center department that mounting panel 2 kept away from cylinder 1 one side is equipped with circular shape constant head tank 2.2, and mounting panel 2 sets up with cylinder 1 is coaxial.
The other end of the cylinder 1 is fixedly connected with a piston base column 3, the piston base column 3 and the cylinder 1 are coaxially arranged, the piston base column 3 is far away from one end of the cylinder 1 and is fixedly connected with a screw rod 3.1, the screw rod 3.1 and the piston base column 3 are coaxially arranged, ten piston rings 4 are sleeved on the outer side of the piston base column 3, the screw rod 3.1 is in threaded connection with a piston nut 3.2, and the piston rings 4 are clamped between the cylinder 1 and the piston nut 3.2 by rotating the piston nut 3.2.
An annular groove 4.1 is formed in one side of each piston ring 4, one side of each groove 4.1 of each piston ring 4 is arranged towards the cylinder 1, unloading rings 5 are arranged in the two grooves 4.1 closest to the piston nut 3.2, each unloading ring 5 comprises a circular ring 51, an annular groove 52 is formed in the outer ring wall of each circular ring 51, eight unloading openings 53 are uniformly formed in the edge of one end face of each circular ring 51, each unloading opening 53 is communicated with the annular groove 52, an air guide opening 54 is formed in the other end face of each circular ring 51, the air guide openings 54 are communicated with the annular grooves 52, and the air guide openings 54 extend from the outer ring of each circular ring 51 to the inner ring of each circular ring 51. The side of the relief ring 5 provided with the air guide opening 54 is arranged towards the piston nut 3.2.
A support ring 7 is arranged in one groove 4.1 closest to the cylinder 1, sealing rings 6 are arranged in the other seven grooves 4.1, and the support ring 7 and the sealing rings 6 are in the prior art and are not repeated.
The utility model provides a novel high pressure oil-free lubrication piston device uses in being arranged in the high pressure compressor, when using, is connected this high pressure oil-free lubrication piston device's mounting panel 2 with the piston rod of compressor, and mounting hole 2.1 is convenient fixed with the piston rod, and constant head tank 2.2 is used for fixing a position the piston rod, ensures the coaxiality of piston rod and this high pressure oil-free lubrication piston device, in the course of the work, reduces gas pressure step by step through twice off-load ring 5 for the effect of sealing ring 6 is better. The principle of the relief ring 5 in reducing the gas pressure is as follows: the high-pressure gas enters the annular groove 52 from the gas guide opening 54 and flows out through the eight relief openings 53, so that the flow rate of the gas is changed and the pressure of the gas is reduced in the process.
Claims (4)
1. A novel high-pressure oil-free lubrication piston device is characterized in that: including cylinder (1), cylinder (1) one end fixed connection mounting panel (2), cylinder (1) other end fixed connection piston base post (3), one end fixed connection screw rod (3.1) of cylinder (1) are kept away from in piston base post (3), there is a set of piston ring (4) at piston base post (3) outside cover, threaded connection piston nut (3.2) on screw rod (3.1), thereby press from both sides tight this set of piston ring (4) between cylinder (1) and piston nut (3.2), every piston ring (4) one side all is equipped with annular recess (4.1), all be equipped with unloading ring (5) in two recess (4.1) nearest piston nut (3.2), be equipped with support ring (7) in recess (4.1) nearest cylinder (1), all be equipped with sealing ring (6) in remaining recess (4.1).
2. The novel high-pressure oil-free lubrication piston device as claimed in claim 1, wherein: the edge of mounting panel (2) evenly is equipped with a set of mounting hole (2.1).
3. The novel high-pressure oil-free lubrication piston device as claimed in claim 1, wherein: the mounting plate (2) is provided with a circular positioning groove (2.2) at the center of one side far away from the cylinder (1).
4. The novel high-pressure oil-free lubrication piston device as claimed in claim 1, wherein: the unloading ring (5) comprises a circular ring (51), an annular groove (52) is formed in the outer ring wall of the circular ring (51), a group of unloading openings (53) are uniformly formed in the edge of one end face of the circular ring (51), each unloading opening (53) is communicated with the annular groove (52), an air guide opening (54) is formed in the other end face of the circular ring (51), the air guide openings (54) are communicated with the annular grooves (52), and the air guide openings (54) extend from the outer ring of the circular ring (51) to the inner ring of the circular ring (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363059.5U CN209875416U (en) | 2019-03-21 | 2019-03-21 | Novel high-pressure oil-free lubrication piston device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363059.5U CN209875416U (en) | 2019-03-21 | 2019-03-21 | Novel high-pressure oil-free lubrication piston device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875416U true CN209875416U (en) | 2019-12-31 |
Family
ID=68955928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920363059.5U Expired - Fee Related CN209875416U (en) | 2019-03-21 | 2019-03-21 | Novel high-pressure oil-free lubrication piston device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875416U (en) |
-
2019
- 2019-03-21 CN CN201920363059.5U patent/CN209875416U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |