CN204003445U - Compressor and roller thereof - Google Patents
Compressor and roller thereof Download PDFInfo
- Publication number
- CN204003445U CN204003445U CN201420166756.9U CN201420166756U CN204003445U CN 204003445 U CN204003445 U CN 204003445U CN 201420166756 U CN201420166756 U CN 201420166756U CN 204003445 U CN204003445 U CN 204003445U
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- China
- Prior art keywords
- roller
- eccentric part
- compressor
- single roller
- rollers
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Abstract
The utility model discloses a kind of compressor and roller thereof, described roller comprises that at least two single rollers are mutually nested, be positioned at outermost described single roller for contacting with the inwall of cylinder (1), the described single roller that is positioned at innermost layer contacts for the eccentric part with bent axle (2); Between adjacent two described single rollers, form pivoting friction pair.The roller that the utility model provides, owing to forming pivoting friction pair between adjacent two single rollers in roller, the outermost surface single roller that makes roller is the single roller of roller innermost layer and the speed of related movement sum between the speed of related movement between eccentric part and adjacent two single rollers with respect to the speed of related movement of eccentric part, the single roller of roller innermost layer and the speed of related movement between eccentric part have greatly been reduced, reduced the surface wear degree of depth of eccentric part, effectively avoided the excessive situation of gap value between eccentric part and roller, operation stability and the working life of compressor have been improved.
Description
Technical field
The utility model relates to compressor apparatus technical field, particularly a kind of compressor and roller thereof.
Background technique
Gap between rotary compressor roller cylindrical and cylinder inner circle generally, in 0.02mm～0.03mm, is wherein located to be controlled at 0.01～0.02mm for 105 °.
At present, rotary compressor is after running a period of time, crankshaft eccentric circle position is worn and torn greatly by torsional moment, because roller sleeve is located on eccentric circle position, the in the situation that of the serious wear of eccentric circle position, the fit dimension generation error of itself and roller, and then cause the cylindrical of roller and the gap between cylinder inner circle to increase, more than even can reaching 0.1mm when serious, cause on the one hand compressor amount of leakage to increase, compressor volume efficiency and performance have been reduced, seriously there is afterwards phenomenon stuck to carry out air-breathing and exhaust in compressor abrasion on the other hand, reduced compressor reliability, have a strong impact on the stable operation of compressor, make the working life of compressor not high.
Therefore, how reducing eccentric part wearing and tearing, operation stability and the working life of improving compressor, is the art personnel problem demanding prompt solutions.
Model utility content
In view of this, the utility model provides a kind of roller, to reduce eccentric part wearing and tearing, operation stability and the working life of improving compressor.The invention also discloses a kind of compressor with above-mentioned roller.
For achieving the above object, the utility model provides following technological scheme:
A roller, described roller comprises that at least two single rollers are mutually nested, is positioned at outermost described single roller for contacting with the inwall of cylinder, is positioned at the described single roller of innermost layer for contacting with the eccentric part of bent axle; Between adjacent two described single rollers, form pivoting friction pair.
Preferably, in above-mentioned roller, the quantity of described single roller is two, is respectively for the first single roller and the second single roller for contacting with the inwall of described cylinder with described eccentric part laminating, and described the second single roller is sheathed on the outer wall of described the first single roller.
Preferably, in above-mentioned roller, described single roller is FC300 material roller.
Preferably, in above-mentioned roller, the thickness of described single roller is identical.
Preferably, in above-mentioned roller, the height of described single roller is identical.
The utility model also provides a kind of compressor, comprises cylinder, bent axle and is sheathed on the roller of the eccentric part of described bent axle, and described roller is the roller as described in above-mentioned any one.
Preferably, in above-mentioned compressor, in described roller, the wearing coefficient of single roller is greater than the eccentric part of described bent axle and the wearing coefficient of described cylinder.
From above-mentioned technological scheme, can find out, the roller that the utility model provides, the outer wall of the outermost single roller of roller contacts with the inwall of cylinder, and the inwall of the single roller of roller innermost layer contacts with the outer surface of eccentric part.Because cylinder contacts with the outer wall of the outermost surface single roller of roller, the outermost surface single roller of roller is certain with respect to the speed of related movement of eccentric part, and owing to forming pivoting friction pair in roller between adjacent two single rollers, the outermost surface single roller that makes roller is the single roller of roller innermost layer and the speed of related movement sum between the speed of related movement between eccentric part and adjacent two single rollers with respect to the speed of related movement of eccentric part, compare with the technology of applying single roller in prior art, the single roller of roller innermost layer and the speed of related movement between eccentric part have greatly been reduced, and then reduced the surface wear degree of depth of eccentric part, effectively avoided the excessive situation of gap value between eccentric part and roller, operation stability and the working life of compressor have been improved.
The utility model embodiment also provides a kind of compressor with above-mentioned roller.Because above-mentioned compressor has above-mentioned roller, above-mentioned roller has above-mentioned technique effect, and therefore, the compressor that the utility model provides also should have same technique effect, at this, introduces no longer in detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the compressor that Fig. 1 provides for the utility model embodiment.
Wherein,
Cylinder-1, eccentric part-2, roller-3, the first single roller-31, the second single roller-32.
Embodiment
The utility model discloses a kind of roller, to reduce eccentric part wearing and tearing, operation stability and the working life of improving compressor.The invention also discloses a kind of compressor with above-mentioned roller.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, the structural representation of 1 compressor providing for the utility model embodiment.
The utility model embodiment provides a kind of roller, and roller comprises that at least two single rollers are mutually nested, is positioned at outermost single roller for contacting with the inwall of cylinder 1, is positioned at the single roller of inner side and contacts for the eccentric part 2 with bent axle; Between adjacent two single rollers, form pivoting friction pair.
Wherein, the surface wear degree of depth h(of the eccentric part 2 of above-mentioned bent axle is wear extent) can represent with following formula:
Wherein:
K-wear factor;
F
u-frictional force (N);
L-skidding distance (mm);
A
a-apparent contact area (mm
2);
H-show hardness (HBS);
Separately have:
F
u=u×F
N………………………………（2）
Wherein:
U-friction factor;
F
n-normal load;
Therefore, integration formula (1), formula (2) obtain:
Wherein:
P: pressure (pa);
V: speed (mm/s);
T: time (s);
In formula (3), can find out, the surface wear degree of depth h of eccentric part 2 is mainly subject to pressure, eccentric part 2 surfaces with affecting speed of related movement and the working time between roller 3 inner rings.
The roller 3 that the utility model embodiment provides, the outer wall of roller 3 outermost single rollers contacts with the inwall of cylinder 1, and the inwall of the single roller of roller 3 innermost layers contacts with the outer surface of eccentric part 2.Because cylinder 1 contacts with the outer wall of the outermost surface single roller of roller 3, the outermost surface single roller of roller 3 is certain with respect to the speed of related movement of eccentric part 2, and owing to forming pivoting friction pair in roller 3 between adjacent two single rollers, the outermost surface single roller that makes roller 3 is the single roller of roller 3 innermost layers and the speed of related movement sum between the speed of related movement between eccentric part 2 and adjacent two single rollers with respect to the speed of related movement of eccentric part 2, compare with the technology of applying single roller in prior art, the single roller of roller 3 innermost layers and the speed of related movement between eccentric part 2 have greatly been reduced, and then reduced the surface wear degree of depth h of eccentric part 2, effectively avoided the excessive situation of gap value between eccentric part 2 and roller 3, operation stability and the working life of compressor have been improved.
It should be noted that, the mutually nested and close contact of adjacent two single rollers, both fit tolerances meet that between two single rollers, to form pivoting friction secondary, that is and, inner side single roller drives outside single roller rotation, and has speed of related movement between the two.Concrete fit tolerance is according to concrete roller model and determine, and at this, introduces no longer one by one and all within protection domain.
For the ease of arranging, the quantity of the single roller in the roller 3 that the utility model embodiment provides is two, be respectively for the first single roller 31 with eccentric part 2 laminatings and the second single roller 32, the second single rollers 32 that contact for the inwall with cylinder 1 and be sheathed on the outer wall of the first single roller 31.In course of working, by nested, the first single roller 31 is sheathed in the second single roller 32, the outer wall of the first single roller 31 is contacted with the inwall of the second single roller 32, complete roller 3 assemblings; Again roller 3 is arranged on the outer wall of eccentric part 2, completes the relative installation of bent axle and roller 3.Also can first the first single roller 31 be sheathed on eccentric part 2, then the second single roller 32 is sheathed on the outer wall of the first single roller 31.Concrete mounting type does not limit.
Preferably, single roller is FC300 material roller.FC300 is a kind of gray cast iron material.Wherein, FC300 is Japanese standard, is equivalent to Chinese HT300, and its hardness is higher, in 220HB left and right, and the single roller of making by application FC300 material, its wear-resisting property is higher.
Mutually nested for the ease of a plurality of single rollers, the thickness of single roller is identical.By a plurality of single rollers, be set to identical thickness, the thickness of having avoided certain single roller is too small and cause the inconvenient situation of installing; And, avoided because producing the situation that cannot form pivoting friction pair that pastes between the too small single roller being adjacent of certain single roller thickness.Also can make the thickness of single roller not identical, only need to guarantee to be convenient to install and adjacent two single rollers can not paste.
In compression process, in order to reach compression, the height of roller 3 outermost single rollers need to match with the height of cylinder 1, to avoid gas to enter roller 3 inside.The height of all the other single rollers of roller 3 (removing the outermost single roller of roller 3) can be lower than the height of cylinder 1.And in the present embodiment, the stable operation in order to ensure roller 3 in cylinder 1 and compression effectiveness, the height of single roller is identical.The height that forms a plurality of single rollers of roller 3 all matches with the height of cylinder 1, has further improved the tightness between roller 3 and cylinder 1.
The utility model embodiment also provides a kind of compressor, comprises cylinder 1, bent axle and is sheathed on the roller 3 of the eccentric part 2 of bent axle, and roller 3 is as above-mentioned any roller.Because above-mentioned compressor has above-mentioned roller 3, above-mentioned roller 3 has above-mentioned technique effect, and therefore, the compressor that the utility model embodiment provides also should have same technique effect, at this, introduces no longer in detail.
Further, in roller 3, the wearing coefficient of single roller is greater than the eccentric part 2 of bent axle and the wearing coefficient of cylinder 1.Be the hardness that the hardness of the manufactured materials of the single roller in roller 3 is greater than the manufactured materials of bent axle and cylinder 1.So that the working life of guaranteeing roller 3 when adjacent two single roller pivoting frictions.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiments, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a roller, it is characterized in that, described roller comprises that at least two single rollers are mutually nested, is positioned at outermost described single roller for contacting with the inwall of cylinder (1), and the described single roller that is positioned at innermost layer contacts for the eccentric part with bent axle (2);
Between adjacent two described single rollers, form pivoting friction pair;
The thickness of described single roller is identical.
2. roller as claimed in claim 1, it is characterized in that, the quantity of described single roller is two, be respectively for the first single roller (31) with described eccentric part (2) laminating and the second single roller (32) contacting for the inwall with described cylinder (1), described the second single roller (32) is sheathed on the outer wall of described the first single roller (31).
3. roller as claimed in claim 1, is characterized in that, described single roller is FC300 material roller.
4. roller as claimed in claim 1, is characterized in that, the height of described single roller is identical.
5. a compressor, is characterized in that, comprises cylinder (1), bent axle and is sheathed on the roller (3) of the eccentric part (2) of described bent axle, and it is characterized in that, described roller (3) is the roller as described in claim 1-4 any one.
6. compressor as claimed in claim 5, is characterized in that, in described roller (3), the wearing coefficient of single roller is greater than the eccentric part (2) of described bent axle and the wearing coefficient of described cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166756.9U CN204003445U (en) | 2014-04-08 | 2014-04-08 | Compressor and roller thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166756.9U CN204003445U (en) | 2014-04-08 | 2014-04-08 | Compressor and roller thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003445U true CN204003445U (en) | 2014-12-10 |
Family
ID=52043452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420166756.9U Expired - Fee Related CN204003445U (en) | 2014-04-08 | 2014-04-08 | Compressor and roller thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545741A (en) * | 2016-01-26 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Swinging rotor compressor |
| CN108916049A (en) * | 2018-08-21 | 2018-11-30 | 珠海凌达压缩机有限公司 | A kind of pump body structure and compressor |
-
2014
- 2014-04-08 CN CN201420166756.9U patent/CN204003445U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545741A (en) * | 2016-01-26 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Swinging rotor compressor |
| CN105545741B (en) * | 2016-01-26 | 2018-11-09 | 珠海格力电器股份有限公司 | A kind of swinging rotor type compressor |
| CN108916049A (en) * | 2018-08-21 | 2018-11-30 | 珠海凌达压缩机有限公司 | A kind of pump body structure and compressor |
| CN108916049B (en) * | 2018-08-21 | 2024-01-19 | 珠海凌达压缩机有限公司 | Pump body structure and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |