CN103629115B - Rolling rotor compressor inclined type blade groove structure - Google Patents
Rolling rotor compressor inclined type blade groove structure Download PDFInfo
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- CN103629115B CN103629115B CN201210299338.2A CN201210299338A CN103629115B CN 103629115 B CN103629115 B CN 103629115B CN 201210299338 A CN201210299338 A CN 201210299338A CN 103629115 B CN103629115 B CN 103629115B
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Abstract
A kind of rolling rotor compressor inclined type blade groove structure, described compressor includes cylinder, piston, bent axle, blade.Cylinder be provided with blade groove and and guide holder, this blade groove is to rotate counterclockwise an angle by cylinder bore diameter and prophyll film trap centered by intersection point on cylinder inner wall of the centrage of cylinder axis, formation one is less than 22 ° relative to the blade groove of the centerline dip of prophyll film trap, its inclination angle Ψ more than 0 °.The present invention be directed to traditional compressor operate in 0 ~ 360 ° the asymmetric blade movement structure set by asymmtric load, can bigger reduction blade and cylinder blade groove and the contact force of piston tip, thus reduce blade groove, blade tip and the friction loss of eccentric part, promote compressor efficiency；Improve vane stress simultaneously.After the present invention uses on rotary compressor, its input power declines maximum and reaches 1.0%, and efficiency is obviously improved；Blade side support reaction is reduced by up to 17%, and the reduction of blade and blade groove abrasion makes functional reliability improve.
Description
Technical field
The present invention relates to a kind of rolling rotor compressor, particularly relate to the blade groove structure of a kind of rolling rotor compressor.
Background technology
For rolling rotor compressor, operationally its mechanical friction loss accounts for the 30%～40% of compressor overall power loss, the friction loss wherein caused by blade groove, blade tip and eccentric part accounts for more than the 60% of overall mechanical friction loss, reduce the friction loss at these several places, be the important channel improving compressor efficiency.Blade and blade groove are due to stress condition badly simultaneously, are also to be easiest to one of region that reliable operation sex chromosome mosaicism occurs.
Centrage AA ' is through cylinder axis O, as shown in Figure 1 for traditional rolling rotor compressor cylinder blade groove (also referred to as prophyll film trap).Piston 20 follows the eccentric part of bent axle 30 when doing eccentric circular motion in the cylinder 10, and blade 40 slides in blade groove 101 and fits tightly with piston 20, and motion mode is periodic reverse motion.Being defined as 0 ° when being in top dead-centre when piston 20 operates to the top, blade 40, it is 360 ° that compressor rotates one week.
Generally, for reducing the above friction loss everywhere of traditional structure, main method is to improve machining accuracy, carry out surface process etc. and increase their sliding degree and wearability, but actual effect inconspicuous.According to compressor load characteristic being studied it is found that in 0～360 ° of whole compressor operation, load is the most asymmetric.Front half period (0～180 °) load is minimum, and the pressure that later half cycle (180～360 °) load is as in compression chamber raises and steeply rises and reach maximum when aerofluxus just starts.The traditional structure that this asymmetric load character determines symmetry is the most optimum in design.Therefore, how reducing blade groove friction loss, blade tip friction loss and eccentric part friction loss from the source of structure design is highly research and problem urgently to be resolved hurrily.
Summary of the invention
Present invention aim at providing a kind of rolling rotor compressor with inclined type blade groove structure for overcoming the deficiency in above existing rolling rotor compressor blade groove structure.
Realizing above-mentioned purpose technical scheme is: provide a kind of rolling rotor compressor inclined type blade groove structure, a kind of rolling rotor compressor inclined type blade groove structure, described rolling rotor compressor includes cylinder, piston, bent axle, blade, wherein, cylinder is provided with blade groove and the coupled logical guide holder with cylindrical bore that blade can slide in groove and fit tightly with piston, wherein, described blade groove is to rotate counterclockwise an angle by cylinder bore diameter and prophyll film trap centered by intersection point on cylinder inner wall of the centrage of cylinder axis, formation one is relative to the blade groove of the centerline dip of prophyll film trap, its inclination angle is Ψ, Ψ is less than 22 ° more than 0 °.
Rolling rotor compressor inclined type blade groove structure as described above, wherein, described inclination angle Ψ is 5～15 °.
Therefore, the present invention uses inclined type blade groove structure, it it is the asymmetric blade movement structure set by the asymmtric load operated in 0～360 ° for traditional compressor, can bigger reduction blade and cylinder blade groove and the contact force of piston tip, thus reduce blade groove friction loss, blade tip friction loss and eccentric part friction loss, promote compressor efficiency；Improve vane stress simultaneously, improve compressor reliability.After the present invention uses on the rotary frequency-changeable compressor that the power that our company develops is 2, the input power of compressor declines maximum and reaches 1.0%, and compressor efficiency is obviously improved；Blade side support reaction is reduced by up to 17%, and the probability of blade and blade groove abrasion reduces so that its functional reliability improves.
Accompanying drawing explanation
Fig. 1 is traditional rolling rotor compressor cylinder blade groove structural representation；
Fig. 2 is the schematic diagram of the rolling rotor compressor inclined type blade groove structure of the present invention；
Fig. 3 is the force analysis figure of tradition rolling rotor compressor cylinder blade groove structure；
Fig. 4 is the force analysis figure of the rolling rotor compressor inclined type blade groove structure of the present invention.
Detailed description of the invention
Referring to Fig. 2, rolling rotor compressor inclined type blade groove structure includes cylinder 1, piston 2, bent axle 3, blade 4, and wherein, cylinder 1 is provided with blade 4 and can slide in groove and the blade groove 11 that fits tightly with piston 2 and coupled logical guide holder 12.Described blade groove rotates counterclockwise an angle by cylinder bore diameter and prophyll film trap centered by intersection point G on cylinder inner wall of the centrage AA of cylinder axis O, formed one relative to prophyll film trap centrage AA tilt, namely centrage be the blade groove 11 of BB, inclination angle is that Ψ, Ψ are not more than 22 °.Preferably, inclination angle Ψ is at 5～15 °.Guide holder 12 is positioned at above blade groove 11 with being connected.And include the spring being arranged in its cylindrical bore, position change due to blade groove 11, the position of corresponding guide holder 12 changes the most therewith, its cylindrical bore center (with from the point of view of the plane that Fig. 2 shows) is on the extension line of blade groove 11 centrage BB, or its cylindrical bore centrage intersects and perpendicular with the extension line of blade groove 11 centrage BB.
Refer to Fig. 3 and Fig. 4, as a example by traditional rolling rotor compressor blade groove structure blade groove structure each force-bearing situation with the present invention, make Performance comparision.The centrage AA of tradition rolling rotor compressor cylinder blade groove 101 structure is through cylinder axis O, when the eccentric part of bent axle 30 runs to close to angle shown in Fig. 3, load suffered by blade 40 reaches peak value, is now applied to the predominant intermolecular forces on blade 40 as shown in Figure 3.Wherein Fbr is blade X making a concerted effort to gas force, spring force and inertia force, and Fvv is vane-piston contact force, and R1 is vane nose support reaction, and R2 is blade tail end support reaction.At X upwards, the X of Fvv is a pair equilibrant to component F vv*cos Ψ Yu Fbr.
In the present invention, use blade groove 11 inclined structure to change the contact force direction of blade 4 and piston 2 so that Fvv with X to angle Ψ diminish, cos Ψ increase.In order to make X upwards still meet the condition of equilibrant, Fvv will necessarily reduce, and i.e. uses inclined type blade groove 11 rear blade 4 will reduce with piston contact power, as shown in Figure 4.
Meanwhile, in the Y direction, R1, R2, Fvv*sin Ψ and blade Y-direction gas force form mechanical balance, after contact force Fvv of blade 4 with piston 2 reduces, as by power R1, R2 in order to make blade still maintain mechanical balance in Y-direction, it will synchronize to reduce.
Synthetically see employing inclined type blade groove 11, it is possible not only to contact force Fvv reducing blade 4 with piston 2, it is also possible to reducing support reaction R1, R2 of blade 4, this can not only reduce mechanical friction loss, improve compressor efficiency, but also the reliability of compressor can be improved.
Additionally, notable in order to make the mechanical loss of entirety decline, need to arrange suitable blade pitch angle, for the compressor of different model, this inclination angle Ψ, generally Ψ are less than 22 ° more than 0 °, such as when 0.1 °, blade 4 and the contact force of piston 2 are relatively big, and its abrasion starts to reduce, but it is limited, power drop is few, and when 22 °, blade 4 and the contact force of piston 2 no longer reduce, abrasion the most no longer reduces, and power drop amplitude is the least so the most inconspicuous increase of compressor efficiency.Preferably between 5 °～15 °, the input power now rotating as above formula frequency-changeable compressor have dropped 0.5～1.0%, and compressor efficiency is obviously improved；Blade side support reaction is reduced by up to 12～17%, and blade and blade groove abrasion substantially reduce, and the reliability of use improves, and be in combination property the best in the case of.
Claims (3)
1. a rolling rotor compressor inclined type blade groove structure, rolling rotor compressor includes gas
Cylinder, piston, bent axle, blade, wherein, cylinder is provided with blade groove and guide holder, and blade can be at described leaf
Sliding in film trap, described blade fits tightly with piston, and described guide holder is connected with described blade groove,
And there is cylindrical bore, it is characterised in that described blade groove is to pass through with cylinder bore diameter and prophyll film trap
The centrage of cylinder axis rotates counterclockwise an angle centered by the intersection point on cylinder inner wall, form one
Relative to the blade groove of the centerline dip of prophyll film trap, its inclination angle is that Ψ, Ψ are less than 22 more than 0 °
°。
Rolling rotor compressor inclined type blade groove structure the most according to claim 1, its feature
Being, described inclination angle Ψ is 5～15 °.
Rolling rotor compressor inclined type blade groove structure the most according to claim 1 and 2, its
Being characterised by, the cylindrical inner circle center of described guide holder is on the extension line of blade groove centrage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299338.2A CN103629115B (en) | 2012-08-22 | 2012-08-22 | Rolling rotor compressor inclined type blade groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299338.2A CN103629115B (en) | 2012-08-22 | 2012-08-22 | Rolling rotor compressor inclined type blade groove structure |
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| Publication Number | Publication Date |
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| CN103629115A CN103629115A (en) | 2014-03-12 |
| CN103629115B true CN103629115B (en) | 2016-09-28 |
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| CN201210299338.2A Active CN103629115B (en) | 2012-08-22 | 2012-08-22 | Rolling rotor compressor inclined type blade groove structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102089805B1 (en) * | 2016-02-15 | 2020-03-17 | 미쓰비시덴키 가부시키가이샤 | Rotary compressor and manufacturing method of rotary compressor |
| CN106768566B (en) * | 2017-03-15 | 2023-05-05 | 广西大学 | A device for measuring the frictional force between the sliding vane and the chute of a rolling piston compressor |
| CN112576504B (en) * | 2020-12-14 | 2024-03-15 | 步跃医疗器械(淄博)有限公司 | Inflator device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187373A (en) * | 2006-11-20 | 2008-05-28 | Lg电子株式会社 | Variable capacity type rotary compressor |
| CN101684812A (en) * | 2008-09-25 | 2010-03-31 | 三星电子株式会社 | Cylinder for rotary compressor and rotary compressor having the same |
| CN101769166A (en) * | 2008-12-30 | 2010-07-07 | 上海日立电器有限公司 | Two-stage rolling rotor-type expander |
| CN102216618A (en) * | 2008-11-19 | 2011-10-12 | 康奈可关精株式会社 | Gas compressor |
| CN102330685A (en) * | 2010-07-12 | 2012-01-25 | 三菱电机株式会社 | Vane compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849675A (en) * | 1994-08-04 | 1996-02-20 | Hitachi Ltd | Rotary compressor |
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2012
- 2012-08-22 CN CN201210299338.2A patent/CN103629115B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187373A (en) * | 2006-11-20 | 2008-05-28 | Lg电子株式会社 | Variable capacity type rotary compressor |
| CN101684812A (en) * | 2008-09-25 | 2010-03-31 | 三星电子株式会社 | Cylinder for rotary compressor and rotary compressor having the same |
| CN102216618A (en) * | 2008-11-19 | 2011-10-12 | 康奈可关精株式会社 | Gas compressor |
| CN101769166A (en) * | 2008-12-30 | 2010-07-07 | 上海日立电器有限公司 | Two-stage rolling rotor-type expander |
| CN102330685A (en) * | 2010-07-12 | 2012-01-25 | 三菱电机株式会社 | Vane compressor |
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| CN103629115A (en) | 2014-03-12 |
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Address after: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Patentee after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |