CN103114999A - Energy-saving compression assembly of single-screw compressor - Google Patents
Energy-saving compression assembly of single-screw compressor Download PDFInfo
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- CN103114999A CN103114999A CN2012103709985A CN201210370998A CN103114999A CN 103114999 A CN103114999 A CN 103114999A CN 2012103709985 A CN2012103709985 A CN 2012103709985A CN 201210370998 A CN201210370998 A CN 201210370998A CN 103114999 A CN103114999 A CN 103114999A
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Abstract
The invention relates to an energy-saving compression assembly of a single-screw compressor. The energy-saving compression assembly comprises a rotor and two symmetric star wheels, wherein the two star wheels are respectively meshed at the two sides of the rotor; star wheel teeth are arranged on the star wheels, and the tooth profiles of the star wheel teeth are formed by a straight line AB, a straight line BC, an arc CD, a straight line DE and a straight line EF; the straight line CB is parallel to a straight line OM formed by the center points of the star wheels and an intersection point A of the roots of the star wheel teeth; the straight line AB and the straight line EF, the straight line BC and the straight line DE and the arc CD are respectively symmetric relative to the center line of the star wheel teeth; an angle CBH formed by the straight line CB and a straight line BH parallel to the center line OM of the star wheel is equal to 16.364 DEG; the tooth top width Lh of the star wheel teeth is more than the tooth bottom width Lb of the star wheel teeth; and when the center line of the star wheel teeth is vertical to the axial line of the rotor, an intersection point B or E of two straight lines of the side edges of the star wheels is also an interaction point of the star wheels and the external cylindrical surface of the rotor. According to the scheme, the increment of gas displacement is more than 30 percent, and the efficiency of the compressor is effectively enhanced.
Description
Technical field
The present invention relates to a kind of improvement of parts of single screw compressor, the energy-conservation compression assembly of the single screw compressor of the constant air displacement that significantly increases compressor of a kind of in the situation that cabinet size particularly belongs to the Compressor Technology field.
Background technique
Single screw compressor belongs to a kind of novel rotary compressor, and described single screw compressor includes a compression assembly, as shown in accompanying drawing 1,2,3, it is simple in structure, is comprised of the star-wheel of a rotor and two symmetries, and described 2 star-wheels are engaged on respectively the both sides of rotor; The general velocity ratio that adopts of star-wheel and rotor is 6:11, and namely star-wheel has 11 teeth, and rotor has 6 compression grooves; This single screw compressor has that volume is little, capacity is large, pressure ratio is large, noise vibration is little, no pulse, can realize the advantages such as electrodeless adjusting of 10%--100%, obtains application widely in fields such as air-conditioning, refrigeration, freezing, medicine manufacturing.
The profile of tooth of the star-wheel of the single screw compressor of the technology of present existing maturation is to be made of two straight lines and one section circular arc parallel with the star-wheel center line.The profile of tooth area of the star-wheel of this structure is less, thus star-wheel to sweep the area of rotor also less, air displacement is less under equal compressor volume, the working efficiency of compressor is lower.
Summary of the invention
The present invention seeks to have proposed in order to overcome the deficiencies in the prior art the energy-conservation compression assembly of the single screw compressor of the constant air displacement that significantly increases compressor of a kind of in the situation that cabinet size.
For achieving the above object, the technical solution used in the present invention is: a kind of energy-conservation compression assembly of single screw compressor, comprise rotor, two symmetrically arranged star-wheels, and described 2 star-wheels are engaged on respectively the both sides of rotor; Be provided with the star-wheel tooth on described star-wheel; The profile of tooth of taking turns described star-wheel tooth is comprised of straight line AB, straight line BC, circular arc C D, straight line DE, straight line EF; Described straight line CB is parallel with the straight line OM that star-wheel tooth root intersection point A forms with the star-wheel central point; Described straight line AB and straight line EF, straight line BC and straight line DE, circular arc C D are symmetrical about star-wheel tooth center line respectively; Angle ∠ CBH=16.364 ° of forming of described straight line CB and the straight line BH parallel with star-wheel center line OM; The tooth top width Lh of described star-wheel tooth is greater than tooth bottom width Lb; When the axis of star-wheel center line and rotor was vertical, the intersection points B point of two sections straight lines of star-wheel side or E point were also the intersection points of star-wheel and rotor outer circle cylinder.
Preferably, be provided with a plurality of star-wheel teeth on described star-wheel; Circular arc C D on each star-wheel gear is on same circle.
Preferably, the distance on star-wheel between the tooth limit of every two adjacent star-wheel teeth is certain value C, C 〉=5mm.
Preferably, the wall thickness between every two adjacent sheaves of described rotor is a definite value C, C 〉=5mm.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The energy-conservation compression assembly of single screw compressor of the present invention is by changing and increase the area of star-wheel tooth, thereby increased the area that star-wheel sweeps rotor, identical compression is apart from the larger air displacement of lower acquisition again, the increasing amount of air displacement can be greater than 30%, effect is remarkable, the very effective compressor efficiency that increased; Make a nearlyer step of technology of single screw compressor, product is green energy conservation more also.
Description of drawings
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the stereogram of the star-wheel of existing single screw compressor;
Accompanying drawing 2 is stereograms of the rotor of existing single screw compressor;
Accompanying drawing 3 is stereograms that the rotor of existing single screw compressor is meshed with star-wheel;
Accompanying drawing 4 is schematic diagram of the star-wheel of energy-saving single-bolt compressor use of the present invention;
Accompanying drawing 5 is schematic diagram of rotor of the energy-conservation compression assembly of single screw compressor of the present invention;
Accompanying drawing 6 is rotor schematic diagram corresponding to polygon star-wheel tooth of the energy-conservation compression assembly of single screw compressor corresponding to the present invention;
Wherein: 1, star-wheel; 2, rotor.
Embodiment
Be depicted as the energy-conservation compression assembly of a kind of single screw compressor of the present invention as accompanying drawing 4-6, comprise rotor 2, two symmetrically arranged star-wheels 1, described 2 star-wheels 1 are engaged on respectively the both sides of rotor 2; Be provided with the star-wheel tooth on described star-wheel 1; The profile of tooth of taking turns described star-wheel tooth is comprised of straight line AB, straight line BC, circular arc C D, straight line DE, straight line EF; Described straight line CB is parallel with the straight line OM that star-wheel tooth root intersection point A forms with the star-wheel central point, and straight line OM is also the angle cutting lines of star-wheel tooth; Described straight line AB and straight line EF, straight line BC and straight line DE, circular arc C D are symmetrical about star-wheel tooth center line respectively; Angle ∠ CBH=16.364 ° of forming of described straight line CB and the straight line BH parallel with star-wheel center line OM; The tooth top width Lh of described star-wheel tooth is greater than tooth bottom width Lb; When the axis of star-wheel center line and rotor was vertical, the intersection points B point of two sections straight lines of star-wheel side or E point were also the intersection points of star-wheel and rotor outer circle cylinder; Be provided with a plurality of star-wheel teeth on described star-wheel; Circular arc C D on each star-wheel gear is on same circle; Distance on star-wheel between the tooth limit of every two adjacent star-wheel teeth is certain value C, C 〉=5mm; Wall thickness between every two adjacent sheaves of described rotor is a definite value C, C 〉=5mm.
As shown in Figure 6, the angle ∠ CBH that forms of the oblique side of each tooth of the star-wheel straight line parallel with the star-wheel center line equates with ∠ IED and equals 360 °/11/2=16.364 °
As shown in Figure 6, straight line AH, IF, circular arc HI are that the teeth outline of star-wheel tooth of the straight flange type star-wheel that uses of prior art is identical, and straight line AB, straight line BC, circular arc C D, straight line DE, straight line EF have formed the profile of tooth shape line of the novel star-wheel that present embodiment proposes.
For relatively having of the present embodiment and prior art star-wheel:
the area of profile of tooth AHIF: S1 ≈ AF*AH, because symmetric relation can get: AB=EF, BC=DE, circular arc C H=circular arc ID, so the area of profile of tooth ABCDEF: S2 ≈ S1+2*(0.5*BC*BH*rad(∠ CBH)), be 11 according to tooth number of star, the rotor number is 6, star-wheel diameter=root diameter=R rotor star-wheel centre distance L=1.6*R, rotating speed is n(r/min), it is star-wheel facewidth B=0.15*R that groove width also equals, BC ≈ BH ≈ 0.75AH, there is AH ≈ 1.4AF can draw the star-shaped teeth area and increases ratio: U1=(S2-S1)/S1 ≈ 0.224, in like manner according to sweeping the star-wheel toothed area BHIE:S3 ≈ BH*BF of rotor fully, sweep the area S4 ≈ S3+2*(0.5*BC*BH*rad(∠ CBH of star-wheel toothed area BCDE)), sweep toothed area scaling up U2=(S4-S3)/S3 ≈ 0.409, at last, carry out integral and calculating can be regarded as in the identical situation of compressor volume, base holds elementary volume Va increasing amount U3＞30%, according to air displacement formula Q=Va*n*12*60, the increasing amount of air displacement is also greater than 30%, effect is remarkable, the very effective compressor efficiency that increased.
Be only below concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on rights protection scope of the present invention.
Claims (4)
1. the energy-conservation compression assembly of a single screw compressor, comprise rotor, two symmetrically arranged star-wheels, and described 2 star-wheels are engaged on respectively the both sides of rotor; Be provided with the star-wheel gear on described star-wheel; It is characterized in that: the profile of tooth of described star-wheel tooth is comprised of straight line AB, straight line BC, circular arc C D, straight line DE, straight line EF; Described straight line CB is parallel with the straight line OM that star-wheel tooth root intersection point A forms with the star-wheel central point; Described straight line AB and straight line EF, straight line BC and straight line DE, circular arc C D are symmetrical about star-wheel tooth center line respectively; Angle ∠ CBH=16.364 ° of forming of described straight line CB and the straight line BH parallel with star-wheel center line OM; The tooth top width Lh of described star-wheel tooth is greater than tooth bottom width Lb; When the axis of star-wheel center line and rotor was vertical, the intersection points B point of two sections straight lines of star-wheel side or E point were also the intersection points of star-wheel and rotor outer circle cylinder.
2. the energy-conservation compression assembly of single screw compressor according to claim 1, is characterized in that: be provided with a plurality of star-wheel teeth on described star-wheel; Circular arc C D on each star-wheel gear is on same circle.
3. the energy-conservation compression assembly of single screw compressor according to claim 2 is characterized in that: the distance on star-wheel between the tooth limit of every two adjacent star-wheel teeth is certain value C, C＞5mm.
4. the energy-conservation compression assembly of according to claim 1 and 2 or 3 described single screw compressors, it is characterized in that: the wall thickness between every two adjacent sheaves of described rotor is a definite value C, C＞5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103709985A CN103114999A (en) | 2012-09-29 | 2012-09-29 | Energy-saving compression assembly of single-screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103709985A CN103114999A (en) | 2012-09-29 | 2012-09-29 | Energy-saving compression assembly of single-screw compressor |
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| Publication Number | Publication Date |
|---|---|
| CN103114999A true CN103114999A (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103709985A Pending CN103114999A (en) | 2012-09-29 | 2012-09-29 | Energy-saving compression assembly of single-screw compressor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3180565A (en) * | 1962-05-08 | 1965-04-27 | Zimmern Bernard | Worm rotary compressors with liquid joints |
| US3788784A (en) * | 1971-07-30 | 1974-01-29 | B Zimmern | Globoid worm fluid-flow machines |
| JP2010024984A (en) * | 2008-07-18 | 2010-02-04 | Daikin Ind Ltd | Screw compressor |
| JP2010196582A (en) * | 2009-02-25 | 2010-09-09 | Daikin Ind Ltd | Single screw compressor |
| CN101832267A (en) * | 2010-04-28 | 2010-09-15 | 北京力通高科技发展有限公司 | Energy-saving single-screw compressor |
-
2012
- 2012-09-29 CN CN2012103709985A patent/CN103114999A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3180565A (en) * | 1962-05-08 | 1965-04-27 | Zimmern Bernard | Worm rotary compressors with liquid joints |
| US3788784A (en) * | 1971-07-30 | 1974-01-29 | B Zimmern | Globoid worm fluid-flow machines |
| JP2010024984A (en) * | 2008-07-18 | 2010-02-04 | Daikin Ind Ltd | Screw compressor |
| JP2010196582A (en) * | 2009-02-25 | 2010-09-09 | Daikin Ind Ltd | Single screw compressor |
| CN101832267A (en) * | 2010-04-28 | 2010-09-15 | 北京力通高科技发展有限公司 | Energy-saving single-screw compressor |
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Application publication date: 20130522 |