CN217976505U - Novel commercial compressor piston - Google Patents
Novel commercial compressor piston Download PDFInfo
- Publication number
- CN217976505U CN217976505U CN202122995334.5U CN202122995334U CN217976505U CN 217976505 U CN217976505 U CN 217976505U CN 202122995334 U CN202122995334 U CN 202122995334U CN 217976505 U CN217976505 U CN 217976505U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil groove
- annular oil
- annular
- groove
- 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.)
- Active
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The invention discloses a novel commercial compressor piston which comprises a piston, wherein an annular oil groove is formed in the outer side wall of the piston. The piston is cylindrical, be equipped with along the piston pin hole of piston radial distribution on the lateral wall of piston, be equipped with on the piston and hold the chamber. The annular oil groove comprises a first annular oil groove and a second annular oil groove which are arranged in parallel. The novel commercial compressor piston is adopted, the lubricating effect of the outer wall of the piston is excellent, and the input power of the compressor is reduced; the friction noise when the piston moves is reduced.
Description
Technical Field
The utility model belongs to the technical field of the compressor technique and specifically relates to a novel commercial compressor piston is related to.
Background
The compressor is the heart of the refrigerating system and mainly comprises a pump body, a motor and a shell. The mechanical properties of the components within the pump body structure directly affect the performance of the compressor. The piston is one of the important parts of the pump body of the compressor, and bears the important work of compressing high-temperature and high-pressure gas refrigerant and directly converting mechanical energy into internal energy in the whole operation process of the compressor. The piston outer wall lubrication effect among the prior art is relatively poor, and the outer wall is complete with cylinder bore wall surface contact, and area of contact and friction area are great, can arouse that cylinder inner wall takes place micro-deformation when leading to the violent change of cylinder internal pressure among the working process, and the piston high-speed motion leads to scraping and wearing and tearing between cylinder inner wall and the piston body in the cylinder, and mechanical loss is too big and influence the performance.
For example, chinese patent publication No. CN111255659A, published 2020/06/09/entitled "method for assembling a piston of a compressor", includes a connecting rod, a piston pin, and a positioning pin, wherein the piston is provided with a piston pin hole, the piston pin is provided with an axial through hole and a radial through hole which are communicated with each other, the piston is provided with a positioning through hole, and the positioning through hole is communicated with the piston pin hole, and the method is characterized by including the steps of: (S1) a piston pin penetrates through a small end hole of a connecting rod and is inserted into a piston pin hole of a piston; (S2) the positioning pin penetrates through the positioning through hole on the piston and is inserted into the radial through hole of the piston pin; (S3) inserting the support rod into the axial through hole of the piston pin, enabling the positioning pin to be in contact with the support rod, and knocking the support rod to enable the positioning pin to be in plastic deformation; and (S4) taking out the supporting rod.
The prior patent has the following disadvantages: (1) The lubricating effect of the outer wall of the piston is poor, the outer wall is completely contacted with the surface of the wall of the cylinder hole, the contact area and the friction area are large, and the mechanical loss of the piston is large when the piston moves at a high speed; and (2) friction noise is easy to generate when the piston moves at a high speed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lubricated effect splendid, improve a novel commercial compressor piston in moving part life-span in order to overcome the problem that the lubricated effect of piston outer wall is poor, easily produce the friction noise when the piston moves at a high speed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a novel commercial compressor piston, includes the piston, be equipped with annular oil groove on the lateral wall of piston.
And lubricating oil is arranged in the annular oil groove, the lubricating oil moves along with the piston, the lubricating effect of the outer wall of the piston is improved by the lubricating oil, the mechanical loss of the piston in high-speed movement is reduced, and the friction noise generated by the piston in movement is reduced.
Preferably, the piston is cylindrical, piston pin holes distributed along the radial direction of the piston are formed in the side wall of the piston, and an accommodating cavity is formed in the piston.
Preferably, the annular oil groove includes a first annular oil groove and a second annular oil groove, and the first annular oil groove and the second annular oil groove are arranged in parallel.
Be equipped with two parallel arrangement's first annular oil groove and second annular oil groove for lubricating oil can fully lubricate the piston lateral wall.
Preferably, a spiral oil groove is arranged between the first annular oil groove and the second annular oil groove, the spiral oil groove is located on the outer side wall of the piston, and the spiral oil groove is communicated with the first annular oil groove and the second annular oil groove.
Be equipped with the spiral oil groove between first annular oil groove and the second annular oil groove, the spiral oil groove makes lubricating oil be reciprocating motion along with the oil plug, and lubricating oil passes through between first annular oil groove and second annular oil groove through the spiral oil groove transport for the outer wall of more abundant contact piston of lubricating oil improves the lubricated effect of piston in the cylinder bore, reduces compressor input power. The lubricating is sufficient, the friction noise generated when the piston moves is reduced, and the service life of a moving part is prolonged.
Preferably, the spiral oil groove includes a first spiral oil groove and a second spiral oil groove, which are centrosymmetric with respect to the piston axis.
Adopt the mode of the spiral oil groove of this kind of bispin of first spiral oil groove and second spiral oil groove for the outer wall of the more abundant contact piston of lubricating oil improves the lubricated effect of piston in the cylinder hole. When the piston is large in size, the path of the lubricating oil through the spiral passage is reduced, so that the lubricating oil flows more sufficiently.
Preferably, the axis of the first annular oil groove is eccentric to the axis of the piston, and the axis of the second annular oil groove is eccentric to the axis of the piston.
The axis of first annular oil groove and the axis of second annular oil groove are according to the axis central symmetry distribution of piston, because the axis of first annular oil groove and the eccentric setting of axis of piston, the axis of second annular oil groove and the eccentric setting of axis of piston, consequently lubricating oil is at the velocity of flow of the minimum degree of depth department (bottleneck department promptly) control lubricating oil of first annular oil groove, prevents that lubricating oil circulation is too fast, is unfavorable for lubricated effect.
Preferably, the maximum depth position in the first annular oil groove penetrates through one end of the spiral oil groove, and the maximum depth position in the second annular oil groove penetrates through the other end of the spiral oil groove.
Preferably, the cross section of the bottom of the first annular oil groove is oval according to the radius direction of the piston, the cross section of the bottom of the second annular oil groove is oval according to the radius direction of the piston, the first annular oil groove is coaxially arranged with the piston, and the second annular oil groove is coaxially arranged with the piston.
There are two minimum degree of depth departments that distribute relatively in the first annular oil groove, have two minimum degree of depth departments that distribute relatively in the second annular oil groove, lubricating oil flow through minimum degree of depth department control lubricating oil circulation volume, improve lubricated effect.
Preferably, the first oil groove penetrates any one of the maximum depths of the first annular oil groove and any one of the maximum depths of the second annular oil groove, and the second oil groove penetrates another one of the maximum depths of the first annular oil groove and another one of the maximum depths of the second annular oil groove opposite to the first oil groove.
Preferably, the bottom of the spiral oil groove is provided with an oil unloading hole, and the oil unloading hole penetrates through the accommodating cavity and the spiral oil groove.
The oil unloading hole unloads lubricating oil, and the oil unloading hole is used for reducing the lubrication temperature, also reduces the friction temperature of moving part simultaneously.
Therefore, the utility model discloses following beneficial effect has: (1) The outer wall of the piston has excellent lubricating effect, and the input power of the compressor is reduced; and (2) reducing the friction noise when the piston moves.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 4 is a sectional view of a fourth embodiment of the present invention.
Fig. 5 is a cross-sectional view of a fifth embodiment of the present invention.
As shown in the figure: piston 1, annular oil groove 2, first annular oil groove 2.1, second annular oil groove 2.2, piston pin hole 3, hold chamber 4, spiral oil groove 5, first spiral oil groove 5.1, second spiral oil groove 5.2, oil discharge hole 6.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the present invention will be further described with reference to the accompanying drawings and detailed description.
First embodiment, a novel commercial compressor piston as shown in fig. 1 includes a piston 1, and an annular oil groove 2 is provided on an outer side wall of the piston 1.
Be equipped with lubricating oil in the annular oil groove 2, lubricating oil is along with the motion of piston 1, and lubricating oil increases the lubricated effect of 1 outer wall of piston, reduces piston 1 mechanical loss when high-speed motion, reduces the friction noise that piston 1 produced when the motion.
As shown in fig. 1, the piston 1 is cylindrical, piston pin holes 3 radially distributed along the piston 1 are formed in a side wall of the piston 1, and an accommodating cavity 4 is formed in the piston 1.
As shown in fig. 1, the annular oil groove 2 includes a first annular oil groove 2.1 and a second annular oil groove 2.2, and the first annular oil groove 2.1 and the second annular oil groove 2.2 are arranged in parallel.
Be equipped with two parallel arrangement's first annular oil groove 2.1 and second annular oil groove 2.2 for lubricating oil can fully lubricate piston 1 lateral wall.
Novel commercial compressor piston 1 in the first of the above-mentioned embodiment, increase the lubricated effect of 1 outer wall of piston through increasing annular oil groove 2, reduce piston 1 mechanical loss when high-speed motion, reduce the friction noise that piston 1 produced when the motion, improve the life of moving part, it is poor to have solved the lubricated effect of 1 outer wall of piston, the outer wall is complete with cylinder hole wall surface contact, area of contact and friction area are great, piston 1 mechanical loss is great when high-speed motion, and the problem of the easy friction noise that produces of piston 1 when high-speed motion.
In a second embodiment, the specific structure of the present embodiment refers to the first embodiment, and the difference is that:
as shown in fig. 2, a spiral oil groove 5 is provided between the first annular oil groove 2.1 and the second annular oil groove 2.2, the spiral oil groove 5 is located on the outer side wall of the piston 1, and the spiral oil groove 5 communicates the first annular oil groove 2.1 and the second annular oil groove 2.2.
Be equipped with helical oil groove 5 between first annular oil groove 2.1 and the second annular oil groove 2.2, helical oil groove 5 makes lubricating oil be reciprocating motion along with the oil plug, and lubricating oil passes through helical oil groove 5 and carries between first annular oil groove 2.1 and second annular oil groove 2.2 for the outer wall of piston 1 is contacted to more abundant lubricating oil, improves the lubricated effect of piston 1 in the cylinder bore, reduces compressor input power. The lubrication is sufficient, and simultaneously, the friction noise generated when the piston 1 moves is reduced, and the service life of a moving part is prolonged.
As shown in fig. 2, the oil discharge hole 6 is formed at the bottom of the spiral oil groove 5, and the oil discharge hole 6 penetrates through the accommodating cavity 4 and the spiral oil groove 5.
The oil discharge hole 6 discharges the lubricating oil, and the oil discharge hole 6 is used for reducing the lubricating temperature and simultaneously reducing the friction temperature of the moving part.
In a third embodiment, the specific structure of the present embodiment refers to the first embodiment, and the differences are as follows:
as shown in fig. 3, the spiral oil groove 5 includes a first spiral oil groove 5.1 and a second spiral oil groove 5.2, and the first spiral oil groove 5.1 and the second spiral oil groove 5.2 are centrosymmetric with respect to the axis of the piston 1.
Adopt the spiral oil groove 5's of this kind of bispin of first spiral oil groove 5.1 and second spiral oil groove 5.2 mode for the outer wall of more abundant contact piston 1 of lubricating oil improves the lubricated effect of piston 1 in the cylinder bore. When the piston 1 is large in size, the path of the lubricating oil through the spiral passage is reduced, so that the lubricating oil flows more sufficiently.
As shown in fig. 3, the bottom of the helical oil groove 5 is provided with an oil discharge hole 6, and the oil discharge hole 6 penetrates through the accommodating cavity 4 and the helical oil groove 5.
The oil discharge hole 6 discharges the lubricating oil, and the oil discharge hole 6 is used for reducing the lubricating temperature and simultaneously reducing the friction temperature of the moving part.
In a fourth embodiment, the specific structure of the present embodiment refers to the first embodiment, and the difference therebetween is that:
as shown in fig. 4, the axis of the first annular oil groove 2.1 is disposed eccentrically to the axis of the piston 1, and the axis of the second annular oil groove 2.2 is disposed eccentrically to the axis of the piston 1.
The axis of first annular oil groove 2.1 and the axis of second annular oil groove 2.2 are according to the axis central symmetry distribution of piston 1, because the axis of first annular oil groove 2.1 and the axis eccentric settings of piston 1, the axis of second annular oil groove 2.2 and the axis eccentric settings of piston 1, consequently lubricating oil is at the minimum depth department (bottleneck department) control lubricating oil's of first annular oil groove 2.1 velocity of flow, prevents that lubricating oil circulation is too fast, is unfavorable for lubricated effect.
As shown in fig. 4, the maximum depth of the first annular oil groove 2.1 is penetrated through one end of the spiral oil groove 5, and the maximum depth of the second annular oil groove 2.2 is penetrated through the other end of the spiral oil groove 5.
As shown in fig. 4, the oil discharge hole 6 is formed at the bottom of the spiral oil groove 5, and the oil discharge hole 6 penetrates through the accommodating cavity 4 and the spiral oil groove 5.
The oil discharge hole 6 discharges the lubricating oil, and the oil discharge hole 6 is used for reducing the lubricating temperature and simultaneously reducing the friction temperature of the moving part.
In a fifth embodiment, the specific structure of the present embodiment refers to the first embodiment, and the difference therebetween is that:
as shown in fig. 5, the bottom of the first annular oil groove 2.1 is oval according to the cross section of the piston 1 in the radius direction, the bottom of the second annular oil groove 2.2 is oval according to the cross section of the piston 1 in the radius direction, the first annular oil groove 2.1 is coaxially arranged with the piston 1, and the second annular oil groove 2.2 is coaxially arranged with the piston 1.
There are two relative minimum degree of depth departments that distribute in the first annular oil groove 2.1, have two relative minimum degree of depth departments that distribute in the second annular oil groove 2.2, lubricating oil flows through minimum degree of depth department and controls lubricating oil circulation volume, improves lubricated effect.
As shown in fig. 5, the first spiral oil groove 5.1 penetrates through the first annular oil groove 2.1 at any maximum depth and the second annular oil groove 2.2 at any maximum depth, and the second spiral oil groove 5.2 penetrates through the first annular oil groove 2.1 at another maximum depth and the second annular oil groove 2.2 at another maximum depth opposite to the first spiral oil groove 5.1.
As shown in fig. 5, the oil discharge hole 6 is formed at the bottom of the helical oil groove 5, and the oil discharge hole 6 penetrates through the accommodating cavity 4 and the helical oil groove 5.
The oil discharge hole 6 discharges the lubricating oil, and the oil discharge hole 6 is used for reducing the lubricating temperature and simultaneously reducing the friction temperature of the moving part.
The above embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. All equivalent changes made according to the shape and structure of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a novel commercial compressor piston, includes piston (1), its characterized in that, be equipped with annular oil groove (2) on the lateral wall of piston, annular oil groove includes first annular oil groove (2.1) and second annular oil groove (2.2), first annular oil groove and second annular oil groove parallel arrangement, be equipped with spiral oil groove (5) between first annular oil groove and the second annular oil groove, spiral oil groove is located the lateral wall of piston, spiral oil groove link up first annular oil groove and second annular oil groove.
2. A new type of commercial compressor piston as claimed in claim 1, wherein the piston is cylindrical, the side wall of the piston is provided with piston pin holes (3) distributed along the radial direction of the piston, and the piston is provided with a receiving cavity (4).
3. A new commercial compressor piston according to claim 1, characterized in that the oil grooves comprise a first oil groove (5.1) and a second oil groove (5.2), which are centrosymmetric with respect to the piston axis.
4. The new commercial compressor piston as defined in claim 1 wherein the axis of said first annular oil groove is eccentric to the axis of the piston and the axis of said second annular oil groove is eccentric to the axis of the piston.
5. The new and improved commercial compressor piston as set forth in claim 4, wherein said first annular oil groove is formed at a maximum depth therethrough to one end of said oil spiral groove, and said second annular oil groove is formed at a maximum depth therethrough to the other end of said oil spiral groove.
6. The piston of claim 3, wherein the first annular oil groove bottom has an elliptical cross-section in a radial direction of the piston, the second annular oil groove bottom has an elliptical cross-section in a radial direction of the piston, the first annular oil groove is coaxially disposed with the piston, and the second annular oil groove is coaxially disposed with the piston.
7. The novel commercial compressor piston as set forth in claim 6, wherein said first oil spiral groove extends through said first annular oil groove at any one of a maximum depth and said second oil annular groove at any one of a maximum depth, and said second oil spiral groove extends through said first annular oil groove at another maximum depth and said second oil annular groove at another maximum depth opposite said first oil spiral groove.
8. A novel commercial compressor piston as claimed in claim 1, 5 or 7 wherein the spiral oil groove is provided at its bottom with an oil discharge hole (6) extending through the accommodation chamber and the spiral oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122995334.5U CN217976505U (en) | 2021-11-30 | 2021-11-30 | Novel commercial compressor piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122995334.5U CN217976505U (en) | 2021-11-30 | 2021-11-30 | Novel commercial compressor piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217976505U true CN217976505U (en) | 2022-12-06 |
Family
ID=84254361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122995334.5U Active CN217976505U (en) | 2021-11-30 | 2021-11-30 | Novel commercial compressor piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217976505U (en) |
-
2021
- 2021-11-30 CN CN202122995334.5U patent/CN217976505U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102597518B (en) | Hermetic type compressor | |
| CN202370792U (en) | Crankshaft applied to refrigeration compressor | |
| CN108087270B (en) | Pump body assembly and compressor with same | |
| CN217976505U (en) | Novel commercial compressor piston | |
| CN218093450U (en) | Compressor cylinder and pump body and compressor with same | |
| CN109162898B (en) | Compressor and refrigeration plant | |
| CN201428577Y (en) | Fixed-point booster oil supply lubricating structure for compressor | |
| CN203201787U (en) | Leak type high pressure vane pump | |
| CN210769199U (en) | Oblique oil groove structure of compressor piston | |
| CN201606243U (en) | Novel high-pressure gear pump | |
| CN211422840U (en) | Oil-absorbable swash plate-plunger piston shoe structure for plunger pump | |
| CN201187450Y (en) | Piston structure with oil groove for rolling rotor type compressor | |
| CN201344113Y (en) | Novel flow divider shaft of radial plunger pump | |
| CN204371574U (en) | A kind of high speed axial piston pump | |
| CN202001250U (en) | Compressor piston | |
| KR102489151B1 (en) | Methods for manufacturing rotor-type compression assemblies | |
| CN202082068U (en) | Piston compressor | |
| CN202789398U (en) | Rack component of compressor | |
| CN107255077B (en) | Rotary compressor | |
| CN201753673U (en) | Inverted-differential compressor piston used for ship | |
| CN201582116U (en) | Scroll compressor for improving oil supply for cross pin ring | |
| CN211975199U (en) | Split type piston cooling and lubricating assembly | |
| CN219197574U (en) | Compressor piston structure, compressor and refrigerator | |
| CN215486481U (en) | Non-slotted cylinder seat and integral connecting rod combined structure | |
| CN216714715U (en) | Crankshaft, pump body, compressor and refrigerating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |