CN211116602U - Sliding vane surface structure, sliding vane and compressor - Google Patents
Sliding vane surface structure, sliding vane and compressor Download PDFInfo
- Publication number
- CN211116602U CN211116602U CN201921934552.4U CN201921934552U CN211116602U CN 211116602 U CN211116602 U CN 211116602U CN 201921934552 U CN201921934552 U CN 201921934552U CN 211116602 U CN211116602 U CN 211116602U
- Authority
- CN
- China
- Prior art keywords
- micro
- friction
- pit
- surface structure
- structure according
- 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
- Lubricants (AREA)
Abstract
The utility model provides a gleitbretter surface structure, include: a slip sheet body including a friction side; the micro-pit structures are uniformly distributed on the friction side surface, and lubricant is stored in the micro-pit structures; and the antifriction coating covers the friction side face and the inner wall of the micro-pit structure. The utility model discloses a gleitbretter surface structure can effectively increase the cohesion of antifriction coating and gleitbretter body on the one hand, can save emollient in the little hole structure of on the other hand, when the vice relative motion that takes place of friction, because the secondary supply source can be regarded as to the emollient in the little hole structure of extrusion, and emollient gets into between the friction is vice, has increased the content of emollient, plays the effect that reduces friction. And thirdly, the leakage problem of the lubricating oil in the running process of the compressor is reduced, pressure drop exists when the oil liquid between the friction pairs flows through the micro pits, and the power of two-phase flow radial flow formed by the lubricating oil and the refrigerant between the sliding vane and the sliding chute is small, so that the leakage amount is reduced.
Description
Technical Field
The utility model belongs to the technical field of the compressor, concretely relates to gleitbretter surface structure, gleitbretter and compressor.
Background
In the rotor compressor, the moving components have high relative movement speed, and the friction pair has a gap and the lubricating oil is unevenly distributed, so that the problems of high friction wear and leakage exist in the pump body, which affects the service life and the working efficiency of the compressor to different degrees. Therefore, the importance of the research on the performance of the compressor is increasingly highlighted, and the problems of reducing the leakage between the friction pairs and increasing the lubricating performance are particularly important.
The friction wear of the rotor compressor during operation mainly occurs between the following kinematic pairs, namely: the sliding sheet is arranged between the arc surface of the head part of the sliding sheet and the rotor, between the side surface of the sliding sheet and the cylinder groove, and between the sliding sheet and the upper cover and the lower cover. Since the side face of the sliding vane and the cylinder sliding chute are always in a boundary lubrication state or a mixed state, research shows that the friction loss and leakage between the side face of the sliding vane and the cylinder sliding chute are the largest in the plurality of kinematic pairs, and therefore, the reduction of the friction wear and leakage between the side face of the sliding vane and the cylinder sliding chute is an important way for improving the performance of the compressor.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model is that the frictional wear between gleitbretter side and the cylinder spout is great in the compressor to a gleitbretter surface structure, gleitbretter and compressor are provided.
In order to solve the above problem, the utility model provides a gleitbretter surface structure, include:
a slip sheet body including a friction side;
the micro-pit structures are uniformly distributed on the friction side surface, and lubricant is stored in the micro-pit structures;
and the antifriction coating covers the friction side face and the inner wall of the micro-pit structure.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Preferably, the depth of the micro-pit structure is H, the thickness of the antifriction coating is d, and d is less than or equal to 0.2H.
Preferably, the depth of the micro-pit structure is H, the equivalent diameter is D, and the depth-diameter ratio S is H/D, wherein S is more than or equal to 0.005 and less than or equal to 0.1.
Preferably, the ratio of the total area of the micro-pit structure to the friction side surface is an area ratio, and when the area ratio is less than 75%, the depth-diameter ratio S meets the condition that S is more than or equal to 0.02 and less than or equal to 0.06.
Preferably, the effective area of the micro-pit structure is a, the perimeter is X, and the hydraulic radius R of the micro-pit structure is a/X, and the equivalent diameter D is 4R.
Preferably, the depth H of the micro-pit structure is 5 μm to 20 μm.
Preferably, the antifriction coating comprises a single layer, a transition layer and a graphite-like coating which are arranged in sequence from inside to outside.
Preferably, the thickness d of the antifriction coating is between 1 μm and 4 μm.
Preferably, the dimple structure is at least one of circular and polygonal.
Preferably, the dimple structures are fabricated using photolithographic-electrolytic processing techniques.
A sliding vane adopts the surface structure of the sliding vane.
A compressor adopts the surface structure of the sliding vane.
The utility model provides a gleitbretter surface structure, gleitbretter and compressor have following beneficial effect at least:
the utility model discloses a gleitbretter surface structure sets up surperficial little hole on gleitbretter body friction side and on this basis coating one deck antifriction material, can effectively increase the cohesion of antifriction coating and gleitbretter body on the one hand, can save emollient in the little hole structure of on the other hand, when the vice relative motion that takes place of friction, because the secondary supply source can be regarded as to the emollient in the little hole structure of extrusion, emollient gets into between the friction is vice, has increased the content of emollient, plays the effect that reduces friction. And thirdly, the leakage problem of the lubricating oil in the running process of the compressor is reduced, pressure drop exists when the oil liquid between the friction pairs flows through the micro pits, and the power of two-phase flow radial flow formed by the lubricating oil and the refrigerant between the sliding vane and the sliding chute is small, so that the leakage amount is reduced.
Drawings
Fig. 1 is a perspective view of a slider surface structure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the slider surface structure according to an embodiment of the present invention;
FIG. 3 is a dimension plot of a slider surface structure according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an antifriction coating in accordance with an embodiment of the present invention;
FIG. 5 is a table showing the comparison of the average friction coefficient of the sliding vane friction pair according to the embodiment of the present invention;
fig. 6 is a COP comparison table of a compressor using an embodiment of the present invention.
The reference numerals are represented as:
1. a micro-pit structure; 2. a slip sheet body; 4. an antifriction coating; 5. a monolayer; 6. a transition layer; 7. a graphite-like coating.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
With reference to fig. 1 to 4, an embodiment of the present invention provides a sliding vane surface structure, including a sliding vane body 2, the sliding vane body 2 includes a friction side, a micro-pit structure 1, the micro-pit structure 1 is uniformly distributed on the friction side, lubricant is stored in the micro-pit structure 1, an anti-friction coating 4, the anti-friction coating 4 covers the friction side and the inner wall of the micro-pit structure 1, the anti-friction material may be a diamond-like carbon (D L C) film, an alloy carbon film containing (Cr, Ti, Ni) elements, a boron nitride film, etc.
The utility model discloses gleitbretter surface structure sets up surperficial little hole and the one deck antifriction material of coating on this basis on 1 two friction sides of gleitbretter body, on the one hand can effectively increase antifriction coating 4 and gleitbretter body 1's cohesion, on the other hand can save emollient in the little hole structure 1, when the vice relative motion that takes place of friction, because the secondary supply source can be regarded as to the emollient among the little hole structure 1 of squeezing action, emollient gets into between the friction is vice, the content of emollient has been increased, play the effect that reduces friction. And thirdly, the leakage problem of the lubricating oil in the running process of the compressor is reduced, pressure drop exists when the oil liquid between the friction pairs flows through the micro pits, and the power of two-phase flow radial flow formed by the lubricating oil and the refrigerant between the sliding vane and the sliding chute is small, so that the leakage amount is reduced.
In this embodiment, the depth of the dimple structure 1 is H, and the thickness of the antifriction coating 4 is d, which satisfies d is less than or equal to 0.2H.
In the embodiment, the depth of the micro-pit structure 1 is H, the equivalent diameter is D, and the depth-diameter ratio S is H/D, wherein S is not less than 0.005 and not more than 0.1. D is equivalent diameter, and the depth of micro-pit structure 1 is the distance from the side plane of gleitbretter body 2 to the deepest of pit to the shape of micro-pit structure is not limited to the round hole shape, can be polygons such as triangle-shaped, rectangle, especially can be regular polygon. The texture exists for storing lubricating oil and reducing friction and abrasion between end faces, generally, a triangle, a square, a rhombus and a circle are proposed for processing convenience, and a regular polygon is also significant in actual production and manufacturing, such as a regular pentagon on the surface of a football and the like. In this embodiment, the depth H of the dimple structure 1 is preferably 5 μm to 20 μm.
In this embodiment, when the effective area of the dimple structure 1 is a and the perimeter is X, the hydraulic radius R of the dimple structure 1 is a/X and the equivalent diameter D is 4R. Taking round micro-pits as an example, equivalent diameter
In the present embodiment, the equivalent diameter D is preferably 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, and can be determined according to the priority coefficient.
In the embodiment, the ratio of the total area of the micro-pit structure 1 to the friction side surface is the area ratio, and when the area ratio is less than 75%, the depth-diameter ratio S satisfies that S is more than or equal to 0.02 and less than or equal to 0.06.
In this embodiment, considering that the movement between the slider and the slider groove is relative sliding, the roughness of the surface of the slider and the slider groove after finish machining is very low, and if the surface texturing is performed by using a laser marking machining method, the roughness of the surface of the slider may be deteriorated. Because the laser processing belongs to the thermal action process, after the processed material reaches the gasification temperature under the high-temperature action of the laser, the liquid material is sprayed out under the action of high-pressure steam, and the melt remained on the surface of the workpiece material can form a flanging phenomenon after meeting the condensation solidification, so that the photoetching-electrolytic processing technology is adopted in the embodiment to carry out texture processing on the sliding sheet body 2. The processing steps are as follows: (1) cleaning the surface of the slip sheet; (2) gluing; (3) photoetching; (4) developing and hardening; (5) and (4) electrolyzing and removing the photoresist.
After the surface micro-pit structure 1 is processed, the sliding sheet is cleaned, dried and then coated, and the specific coating process is as follows:
(1) cleaning a sliding sheet substrate, (2) depositing a metal simple substance film bonding layer, (3) depositing a metal hard carbide film transition layer, (4) depositing a graphite-like (G L C) coating, taking out the sliding sheet when the temperature of a vacuum chamber is reduced to room temperature, and obtaining a multilayer-structure film on the surface of the sliding sheet.
In the embodiment, when the area ratio is less than or equal to 75%, the ratio of the depth of the micro-pit structure 1 to the equivalent diameter D, that is, the depth-to-diameter ratio S is in the range of 0.02 to 0.06, the average friction coefficient between the friction pairs is the smallest, and the COP corresponding to the compressor is the highest.
In this embodiment, the antifriction coating 4 includes a single layer 5, a transition layer 6, and a graphite-like coating 7, which are arranged in this order from inside to outside. The single layer 5 is a metal single layer attached to the slide body 2; the transition layer 6 is a metal hard carbide thin film transition layer attached to the metal single layer 5; and the graphite-like coating is attached to the metal hard carbide film transition layer. In this example, the thickness d of the antifriction coating 4 is 1 μm to 4 μm.
Figure 5 shows a comparison of the average coefficient of friction of the slip sheet antifriction structure of the present invention with a reference slip sheet without any surface treatment, a slip sheet with only surface coating, only surface texture. As can be seen from the figure, compared with the slide sheet without any surface treatment, the average friction coefficient of the film-coated slide sheet is reduced by 25 percent, the average friction coefficient of the texture slide sheet is reduced by 16.7 percent, and the antifriction effect of the film-coated slide sheet and the texture slide sheet is 41.6 percent when the film-coated slide sheet and the texture slide sheet are singly superposed. And the utility model provides a antifriction wear-resisting structure gleitbretter has reduced 59.16% on average for reference gleitbretter coefficient of friction when 1 depth-diameter ratio of pit structure is 0.02 ~ 0.06, and far more than both effectual that superpose alone.
Figure 6 shows the compressor COP comparison of the anti-friction and wear-resistant structure for the sliding vane of the present invention with the reference sliding vane without any surface treatment, the sliding vane with only surface coating and only surface texture. As can be seen from the figure, compared to the slide without any surface treatment, only the coated slide compressor COP increases by 1%, only the textured slide compressor COP increases by 0.5%. When the depth-diameter ratio of the micro-pit structure 1 is 0.02-0.06, the COP of the compressor is increased by 6.86% relative to the COP of the reference slip sheet, and the COP of the compressor is obviously improved.
The following table shows the average life of the compressor using the present example compared to the average life of a reference compressor, which was subjected to only one antifriction treatment. It can be seen from the table that the gleitbretter antifriction wear resistant structure in this patent application scheme just appears the gleitbretter cladding material and drops and lead to the phenomenon of shutting down after the compressor operation 1500h, and the life-span is 2 times than the reference compressor life-span. And compared with a reference compressor, the service life of the compressor with the single antifriction structure is improved by 0.4 times and 0.2 times respectively. Because the technical scheme of the patent is that a layer of antifriction material is coated on the basis of the surface texture, the binding force of the film is improved by utilizing the depression of the micro pits, and the service life of the compressor sliding vane is prolonged.
The embodiment also provides a sliding sheet, and the sliding sheet surface structure is adopted.
The embodiment further provides a compressor, which adopts the sliding vane surface structure, and is not only suitable for the rotary compressor, but also suitable for rotary fluid machinery with similar sliding vane structures, such as sliding vane compressors, swing rotor compressors and the like.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (12)
1. A slider surface structure, comprising:
a slip sheet body (2), the slip sheet body (2) comprising a friction side;
the friction side surfaces are uniformly distributed with the micro-pit structures (1), and lubricant is stored in the micro-pit structures (1);
and the antifriction coating (4) covers the friction side face and the inner wall of the micro-pit structure (1).
2. Slider surface structure according to claim 1, characterised in that the depth of the micro-pit structure (1) is H and the thickness of the anti-friction coating (4) is d, satisfying d ≦ 0.2H.
3. The slider surface structure according to claim 1, wherein the depth of the micro-pit structure (1) is H, the equivalent diameter is D, and the depth to diameter ratio S is H/D, wherein 0.005 ≦ S ≦ 0.1.
4. The sliding sheet surface structure according to claim 3, wherein the ratio of the total area of the micro-pit structure (1) to the friction side surface is an area ratio, and when the area ratio is less than 75%, the depth-to-diameter ratio S satisfies 0.02 ≤ S ≤ 0.06.
5. A slider surface structure according to claim 3, characterized in that the effective area of the micro-pit structure (1) is a and the perimeter is X, the hydraulic radius R of the micro-pit structure (1) is a/X and the equivalent diameter D is 4R.
6. A slider surface structure according to any of claims 1-5, characterized in that the depth H of the micro-pit structure (1) is 5 μm to 20 μm.
7. Slider surface structure according to claim 6, characterised in that the antifriction coating (4) comprises a single layer (5), a transition layer (6), a graphite-like coating (7) arranged in that order from the inside to the outside.
8. Slider surface structure according to claim 7, characterised in that the thickness d of the antifriction coating (4) is 1 μm to 4 μm.
9. A slider surface structure according to any of claims 1-5, 7, 8, characterized in that the micro-pit structure (1) is at least one of circular, polygonal.
10. Slider surface structure according to claim 9, characterised in that the micro-pit structure (1) is processed using photo-lithographic-electrolytic processing techniques.
11. A slider characterized by the use of a slider surface structure according to any of claims 1 to 10.
12. A compressor, characterized by the use of a sliding vane surface structure according to any of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934552.4U CN211116602U (en) | 2019-11-11 | 2019-11-11 | Sliding vane surface structure, sliding vane and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934552.4U CN211116602U (en) | 2019-11-11 | 2019-11-11 | Sliding vane surface structure, sliding vane and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116602U true CN211116602U (en) | 2020-07-28 |
Family
ID=71716541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921934552.4U Active CN211116602U (en) | 2019-11-11 | 2019-11-11 | Sliding vane surface structure, sliding vane and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848138A (en) * | 2019-11-11 | 2020-02-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding vane surface structure, sliding vane and compressor |
-
2019
- 2019-11-11 CN CN201921934552.4U patent/CN211116602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848138A (en) * | 2019-11-11 | 2020-02-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding vane surface structure, sliding vane and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110181078A (en) | A kind of bionical texture and coating synergistic effect antifriction cutter and its design method | |
| US8919319B2 (en) | Piston for internal combustion engine | |
| EP3163129B1 (en) | Piston ring | |
| CN110848138A (en) | Sliding vane surface structure, sliding vane and compressor | |
| JP2010236444A (en) | Combination of cylinder and piston | |
| CN112555409B (en) | Low-friction diamond-like coating piston ring with texture structure and preparation method thereof | |
| CN211202621U (en) | Isolator formula does not have little texture cylindrical roller bearing in holder surface | |
| CN211116602U (en) | Sliding vane surface structure, sliding vane and compressor | |
| JP5096992B2 (en) | Slide bearing for internal combustion engine | |
| JP2013210057A (en) | Wear-resistant coat coating structure | |
| CN109514277A (en) | A kind of compound texture guide rail of micro-nano and preparation method thereof | |
| CN110374881A (en) | Friction structure, friction parts and compressor | |
| JP5731991B2 (en) | Sliding member | |
| CN206770201U (en) | Rotary compressor | |
| CN110242575B (en) | Friction piece, compressor, air conditioner and friction surface treatment method | |
| JP5317376B2 (en) | Bearing device for supporting a crankshaft of an internal combustion engine | |
| CN207437339U (en) | Wear-resisting oil well pump with surface texture treatment | |
| CN207552455U (en) | A kind of textured surfaces lubrication matrix for coating magnetic fluid | |
| CN206738167U (en) | Rotary compressor and its pump housing | |
| JPWO2010044216A1 (en) | Sliding member and manufacturing method thereof | |
| JP2013119814A (en) | Piston skirt structure and sliding member | |
| CN108006070B (en) | Small-inclination-angle miniature fixed tile thrust sliding bearing with uniform bearing surface | |
| CN207093225U (en) | A kind of closed type oil ring | |
| CN213953762U (en) | Low-friction piston ring | |
| CN209539816U (en) | The end face sliding bearing of double rubbing surfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220706 Address after: 230088 Mingchuan Road 209, Baiyan Science Park, Hefei High-tech Zone, Anhui Province Patentee after: HEFEI LINGDA COMPRESSOR CO.,LTD. Patentee after: Zhuhai GREE energy conservation and environmental protection refrigeration technology research center Co., Ltd. Address before: 519000 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |