CN102052322B - Twin-screw compressor rotor profile - Google Patents
Twin-screw compressor rotor profile Download PDFInfo
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- CN102052322B CN102052322B CN201010602725XA CN201010602725A CN102052322B CN 102052322 B CN102052322 B CN 102052322B CN 201010602725X A CN201010602725X A CN 201010602725XA CN 201010602725 A CN201010602725 A CN 201010602725A CN 102052322 B CN102052322 B CN 102052322B
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- 239000000203 mixture Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention relates to a twin-screw compressor rotor profile, wherein a two-side asymmetric profile is adopted, six sections of profiles are combined to form end face profiles of a female rotor and a male rotor, and the female rotor and the male rotor which are identical in central distance A and different in size are combined to a form a female/male rotor profile series of a screw compressor. An arc f2g2 with a certain radius and an arc envelope d2e2 at the addendum circle on the passive side of the female rotor end face profile are in smooth connection through taking a straight line e2f2 as a common tangent. The elliptic arc b1c1 on the male rotor end face profile is different from the ordinary arc pin tooth curve or the envelope and can enable the engagement and releasing of the male and female rotors to be more stable through properly adjusting the length ratio of the major and minor axes of the ellipse, so as to reduce noise and vibration. The included angle of the addendum arc c1d1 on the male rotor end face profile can be adjusted, and the addendum arc c1d1 is in tangent and smooth connection with both the elliptic arc b1c1 and an arc d1e1. The invention endows the rotors with the advantages of short contact line, small disclosed triangle, big flow passage area, streamlined rotor profile, reduced aerodynamic resistance and the like.
Description
Technical field
The present invention relates to helical-lobe compressor, relate in particular to a kind of new molded lines of screw rotor that is applicable to double-screw compressor.
Background technique
The quality of screw compressor end face molded lines is with the performance that directly has influence on helical-lobe compressor, like sealing, efficient, area utilization factor etc.Popular in the market molded lines has GHH molded lines, Hitachi's molded lines, SRM molded lines etc., and they all have characteristics separately.
Double-screw compressor has developed very soon since last century, the forties emerged, and has been widely used in many fields.The renewal of screw rotor molded lines and development are the major impetus that promotes the double-screw compressor development.In the patent documentation of various countries, the screw rotor molded lines emerges in an endless stream, and purpose all is in order to raise the efficiency, to improve performance.The design of screw rotor molded lines, should consider following these factors usually:
1, flank of tooth contact line length is short as far as possible, laterally misses loss to reduce;
2, the gas leakage triangle area is as far as possible little, to reduce vertical leakage loss;
3, area utilization factor is big as far as possible, to improve air displacement;
4, the molded lines curve is excessively slick and sly, and no cusp or sharp change to reduce the flow perturbation loss, improve manufacturability simultaneously;
5, the negative moment on the female rotor is as far as possible little, to improve power performance, improves adiabatic efficiency.
In the patent documentation at home and abroad,, improve performance, carried out various researchs in order to raise the efficiency, for example:
In order to reduce the leakage triangle; Chinese patent document 03102207.3 disclosed the G place of the passive side top circle of female rotor connect a FG curve and in meet quadratic curve r=(ε K)/(1-ε cos θ); Though the leakage triangle area is effectively controlled, and practical implementation is got up, some difficulty; And curve connection and rough, break is arranged.
In order to construct molded lines, the Chinese patent document as 200410204539.3,200710171655.5,200810204539.3 in, for the b on the female rotor
2c
2Curve all adopts circular arc pin tooth curve (center is at the circular arc of node P), and its shortcoming is: the engagement of yin, yang rotor is not steady with disengagement, and the instantaneous variation of stream pressure is arranged, thereby produces noise and vibration.
In order to improve the sealing of rotor and cavity inner wall; Chinese patent document 200710171655.5 has proposed at the tooth top of male rotor an elliptic curve to be set; Its shortcoming is: on the end face molded lines; Rotor contacts with cavity inner wall remains a point, rather than a line, and sealing effect is not the best.Though Chinese patent document 200410204539.3 has proposed on the male rotor tooth top, to add the preceding paragraph circular arc, does not have concrete embodiment, thereby is difficult to carry out.
Summary of the invention
The present invention is on the basis of drawing domestic and international existing helical-lobe compressor molded lines advantage, develops a kind of double-screw compressor molded lines of rotor, and it is a kind of novel molded lines of rotor of helical lobe compressor, has solved above-mentioned existing in prior technology problem.
Technical solution of the present invention is following:
A kind of double-screw compressor molded lines of rotor adopts bilateral asymmetric molded lines, forms yin, yang rotor end-face molded lines by six segment type lines, constitutes the molded lines series of the yin, yang rotor of helical-lobe compressor with the yin, yang rotor of identical centre distance A and different size;
The molded lines of said female rotor is formed as follows:
a
1b
1Section: circular arc a
1b
1Before cut the male rotor root circle in a
1Point, after cut elliptic arc b
1c
1In b
1Point, its radius R
5=(0.05 ~ 0.1) * R
1, the O of center outside pitch circle
4The point on;
b
1c
1Section: on male rotor, oval heart O
3Point is at O
1O
2Connecting line on, the oval curve composition 1/4 or more, its longitudinal axis L=(R
1-R
1j)+(0.1 ~ 0.2) R
1j, minor axis S=(0.85 ~ 0.95) L;
c
1d
1Section: on male rotor, with O
1Point is center, R
1Be the radius tooth top arc that draws, angle
1=1 ~ 3 °;
d
1e
1Section: on female rotor, with O
5Point is center, R
6Be the radius d that draws
1e
1The circular arc of section, wherein O
1O
5d
1On a ray, R
6=(0.05 ~ 0.2) R
1j
e
1f
1Section: by straight line e on the male rotor
2f
2Envelope form;
f
1g
1The section: by the center of circle on the male rotor at O
6, radius is R
3Circular arc f
2g
2Envelope forms;
The molded lines of said female rotor is formed as follows:
a
2b
2Section: by on male rotor, the O of center outside pitch circle
4On the point, radius is R
5Circular arc a
1b
1The section envelope forms;
b
2c
2Section: by on male rotor, the center is at oval heart O
3Point is at O
1O
2Connecting line on, major axis is L, minor axis is the oval b of S
1c
1The envelope of section forms;
c
2d
2Section: by on male rotor, the center is at O
1On, angle is α
1Tooth top arc c
1d
1Envelope form;
d
2e
2Section: by on male rotor, the center of circle is O
5Point, radius are R
6Circular arc line segment d
1e
1Envelope form;
e
2f
2Section: on female rotor, straight line e
2f
2The section public affairs are cut in d
2e
2Section arc envelope line and circular arc f
2e
2Between, with two curves of smooth connection;
f
2g
2The section: by the center of circle on the female rotor at O
6, radius is R
3Circular arc form R
3=(0.03 ~ 0.05) R
2j, the center of circle is in nodel line.
The a of said yin, yang rotor
2, b
2, c
2, e
2, f
2, g
2, a
1, b
1,c
1, e
1, f
1, g
1Point is public point of contact.
On the said female rotor end face molded lines, the circular arc f of the certain radius at passive side top circle place
2g
2With arc envelope line d
2e
2Between use straight line e
2f
2Do the smooth connection of common tangent.
Elliptic arc b on the said male rotor end face molded lines
1c
1, be different from conventional circular arc pin tooth curve or its envelope, through the length ratio of adjustment ellipse long and short shaft, elliptic arc b
1c
1The engagement of male rotor and female rotor is more approached steadily with disengagement.
Tooth top circular arc c on the said male rotor end face molded lines
1d
1Angle be to adjust, and itself and elliptic arc b
1c
1With circular arc d
1e
1Connection be tangent and for smooth.
A kind of double-screw compressor molded lines of rotor of the present invention adopts bilateral asymmetric molded lines; Make rotor except have Line of contact short, reveal that triangle is little, area of passage big, molded lines of rotor is streamlined, reduce the advantage such as aerodynamical resistance; The more important thing is that the present invention also has following characteristics:
1, on the female rotor end face molded lines of the present invention, the circular arc f of the certain radius at passive side top circle place
2g
2With arc envelope line d
2e
2Between use straight line e
2f
2Do the smooth connection of common tangent.
2, the elliptic arc b on the male rotor end face molded lines of the present invention
1c
1, be different from conventional circular arc pin tooth curve or its envelope, through the length ratio of suitable adjustment ellipse long and short shaft, elliptic arc b
1c
1The engagement of male rotor and female rotor is more approached steadily with disengagement, thereby reduce noise and vibration.
3, the tooth top circular arc c on the male rotor end face molded lines of the present invention
1d
1Angle can adjust and itself and elliptic arc b within the specific limits
1c
1With circular arc d
1e
1Connection be tangent, thereby particularly smooth.
The centre distance of negative and positive rotor end-face molded lines is A, and the male rotor number of teeth is z
1, the female rotor number of teeth is z
2, select z-
1, z
2The principle of institute's foundation is: to being used for the compressor of low pressure and mass flow operating mode, z
1/ z
2Bidentate difference molded lines such as desirable 3/5,4/6; To being used for the compressor of mesohigh low flow rate condition, z
1/ z
2Desirable 4/5,5/6,6/7,7/8 molded lines such as difference such as monodentate such as grade.Then, can confirm the radius R of male rotor pitch circle
1jRadius R with the female rotor pitch circle
2j, the principle of institute's foundation is: A=R
1j+ R
2j, R
1j/ R
2j=Z
1/ Z
2
Use the helical-lobe compressor of double-screw compressor molded lines of rotor of the present invention, can be widely used in fields such as air compression, refrigeration, air-conditioning, process gas compression, under the mesolow operating mode, occupy most market shares.
Description of drawings
Fig. 1 is the structural representation of a kind of double-screw compressor molded lines of rotor of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the structure of double-screw compressor rotor end-face molded lines of the present invention is elaborated.
Referring to Fig. 1, the present invention provides a kind of double-screw compressor molded lines of rotor, and the following part molded lines of center line is the master end molded lines among the figure, and the above part molded lines of center line is passive side molded lines.
The present invention adopts bilateral asymmetric molded lines, forms yin, yang rotor end-face molded lines by six segment type lines respectively.Constitute the molded lines series of the yin, yang rotor of helical-lobe compressor with the yin, yang rotor of identical centre distance A and different size.Wherein, the molded lines of female rotor is formed as follows:
a
1b
1Section: circular arc a
1b
1Before cut the male rotor root circle in a
1Point, after cut elliptic arc b
1c
1In b
1The point; Its radius R
5=(0.05 ~ 0.1) * R
1, the O of center outside pitch circle
4The point on.
b
1c
1Section: on male rotor, oval heart O
3Point is at O
1O
2Connecting line on, the oval curve composition 1/4 or more; Its longitudinal axis L=(R
1-R
1j)+(0.1 ~ 0.2) R
1j, minor axis S=(0.85 ~ 0.95) L.
c
1d
1Section: on male rotor, with O
1Point is center, R
1Be the radius tooth top arc that draws, angle
1=1 ~ 3 °.
d
1e
1Section: on female rotor, with O
5Point is center, R
6Be the radius d that draws
1e
1The circular arc of section.O wherein
1O
5d
1On a ray, R
6=(0.05 ~ 0.2) R
1j
e
1f
1Section: by straight line e on the male rotor
2f
2Envelope form.
f
1g
1The section: by the center of circle on the male rotor at O
6, radius is the circular arc f of R3
2g
2Envelope forms.
The molded lines of female rotor is formed as follows:
a
2b
2Section: by on male rotor, the O of center outside pitch circle
4On the point, radius is R
5Circular arc a
1b
1The section envelope forms.
b
2c
2Section: by on male rotor, the center is at oval heart O
3Point is at O
1O
2Connecting line on, major axis is L, minor axis is the oval b of S
1c
1The envelope of section forms.
c
2d
2Section: by on male rotor, the center is at O
1On, angle is α
1Tooth top arc c
1d
1Envelope form.
d
2e
2Section: by on male rotor, the center of circle is O
5Point, radius are R
6Circular arc line segment d
1e
1Envelope form.
e
2f
2Section: on female rotor, straight line e
2f
2The section public affairs are cut in d
2e
2Section arc envelope line and circular arc f
2e
2Between, with two curves of smooth connection.
f
2g
2The section: by the center of circle on the female rotor at O
6, radius is R
3Circular arc form R
3=(0.03 ~ 0.05) R
2j, the center of circle is in nodel line.
In addition, a of yin, yang rotor
2, b
2, c
2, e
2, f
2, g
2, a
1, b
1, c
1, e
1, f
1, g
1Point is public point of contact.
As shown in fig. 1, on the female rotor end face molded lines, the circular arc f of the certain radius at passive side top circle place
2g
2With arc envelope line d
2e
2Between use straight line e
2f
2Do the smooth connection of common tangent.
Elliptic arc b on the male rotor end face molded lines
1c
1, be different from conventional circular arc pin tooth curve or its envelope, through the length ratio of suitable adjustment ellipse long and short shaft, elliptic arc b
1c
1The engagement of male rotor and female rotor is more approached steadily with disengagement, thereby reduce noise and vibration.
Tooth top circular arc c on the male rotor end face molded lines
1d
1Angle can adjust and itself and elliptic arc b within the specific limits
1c
1With circular arc d
1e
1Connection be tangent, thereby particularly smooth.
The concrete building process of double-screw compressor molded lines of rotor of the present invention in practical application is following:
According to Fig. 1, the line segment of female rotor is by a
2b
2, b
2c
2, c
2d
2, d
2e
2, e
2f
2, f
2g
2Six sections compositions, the molded lines of male rotor is by a
1b
1, b
1c
1, c
1d
1, d
1e
1, e
1f
1, f
1g
1Six sections compositions.
(1) on male rotor, makes up generation curve a
1b
1, b
1c
1, c
1d
1, d
1e
1
b
1c
1Section: at O
1O
2On the connecting line, from male rotor cylindrical line, the long L of horizontal intercepting, i.e. L=(R
1-R
1j)+(0.1 ~ 0.2) R
1j, find O
3Point is then from O
3Point is intercepting S, i.e. S=(0.85 ~ 0.95) L vertically downward), at last with O
3Point is the center, and L is a major axis, and S is a minor axis, and elliptic arc b draws
1c
1
a
1b
1Section: outside pitch circle, according to male rotor number of teeth z
1, with angle
2=(0.55 ~ 0.65) * 2 π/z
1, radius R
5, i.e. R
5=(0.05 ~ 0.1) * R
1, confirm center of circle O
4Point is with O
4Point is for the center, with R
5Be radius, draw a that circular arc is cut in root circle
1Point is cut in elliptic arc b
1c
1In b
1Point, a draws
1b
1Circular arc.
c
1d
1Section: with O
1Be the center of circle, draw the male rotor cylindrical, and draw and horizontal sextant angle α
1Ray, obtain c
1d
1Circular arc.
d
1e
1Section: on above-mentioned ray, in the cylindrical alignment, get distance R
6, i.e. R
6=(0.05 ~ 0.2) R
1j, confirm O
5Point obtains d
1e
1Circular arc.
(2) the male rotor pitch circle is done pure rolling on the female rotor pitch circle, the spin velocity of the male rotor pitch circle ratio of tarnsition velocity together is z
2/ z
1, be cemented in the circular arc a on the male rotor
1b
1, b
1c
1, c
1d
1, d
1e
1, track, can form the arc envelope line a of female rotor
2b
2, elliptic arc envelope b
2c
2, arc envelope line c
2d
2, arc envelope line d
2e
2
(3) on female rotor, make up generation curve f
2g
2, e
2f
2
f
2g
2Section: in pitch circle, according to female rotor number of teeth z
2, with angle
3=(0.3 ~ 0.4) * 2 π/z
2, radius R
3, i.e. R
3=(0.03 ~ 0.05) R
2j, confirm center of circle O
6Point is with O
6Point is for the center, with R
3Be radius, draw the g that circular arc is cut in top circle
2Point obtains f
2g
2Circular arc.
e
2f
2Section: at f
2g
2Circular arc and arc envelope line d
2e
2Between connect common tangent, promptly obtain straight line e
2f
2
(4) the female rotor pitch circle is done pure rolling on the male rotor pitch circle, the spin velocity of the female rotor pitch circle ratio of tarnsition velocity together is z
1/ z
2, be cemented in the circular arc f on the female rotor
2g
2,, e
2f
2Track, can form the arc envelope line f of male rotor
1g
1, lines enveloping line e
1f
1
(5) with a of male rotor
1b
1, b
1c
1, c
1d
1, d
1e
1, e
1f
1, f
1g
1The curve combination is with number of teeth z
1, O along the center of circle
1, circumference uniform distribution can obtain the end face molded lines of male rotor.A with female rotor
2b
2, b
2c
2, c
2d
2, d
2e
2, e
2f
2, f
2g
2The curve combination is with number of teeth z
1, O along the center of circle
1, circumference uniform distribution can obtain the end face molded lines of female rotor.
So far, the negative and positive rotor end-face has just been built fully.
In sum, a kind of double-screw compressor molded lines of rotor of the present invention adopts bilateral asymmetric molded lines, make rotor have Line of contact short, reveal that triangle is little, area of passage big, molded lines of rotor is streamlined, reduce advantage such as aerodynamical resistance.Use the helical-lobe compressor of double-screw compressor molded lines of rotor of the present invention, can be widely used in fields such as air compression, refrigeration, air-conditioning, process gas compression, under the mesolow operating mode, occupy most market shares.
Certainly; Those skilled in the art in the present technique field will be appreciated that; The foregoing description only is to be used for explaining the present invention; And be not with opposing qualification of the present invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (5)
1. double-screw compressor rotor; It is characterized in that; Adopt bilateral asymmetric molded lines, form yin, yang rotor end-face molded lines, constitute the molded lines series of the yin, yang rotor of helical-lobe compressor with the yin, yang rotor of identical centre distance A and different size by six segment type lines;
The molded lines of said male rotor is formed as follows:
a
1b
1Section: circular arc a
1b
1Before cut the male rotor root circle in a
1Point, after cut elliptic arc b
1c
1In b
1Point, its radius R
5=(0.05 ~ 0.1) * R
1, the O of center outside pitch circle
4The point on;
b
1c
1Section: on male rotor, oval heart O
3Point is at O
1O
2Connecting line on, the oval curve composition 1/4 or more, its longitudinal axis L=(R
1-R
1j)+(0.1 ~ 0.2) R
1j, minor axis S=(0.85 ~ 0.95) L;
c
1d
1Section: on male rotor, with O
1Point is center, R
1Be the radius tooth top arc that draws, angle
1=1 ~ 3 °;
d
1e
1Section: on male rotor, with O
5Point is center, R
6Be the radius d that draws
1e
1The circular arc of section, wherein O
1O
5d
1On a ray, R
6=(0.05 ~ 0.2) R
1j
e
1f
1Section: by straight line e on the female rotor
2f
2Envelope form;
f
1g
1The section: by the center of circle on the female rotor at O
6, radius is R
3Circular arc f
2g
2Envelope forms;
The molded lines of said female rotor is formed as follows:
a
2b
2Section: by on male rotor, the O of center outside pitch circle
4On the point, radius is R
5Circular arc a
1b
1The section envelope forms;
b
2c
2Section: by on male rotor, the center is at oval heart O
3Point is at O
1O
2Connecting line on, major axis is L, minor axis is the oval b of S
1c
1The envelope of section forms;
c
2d
2Section: by on male rotor, the center is at O
1On, angle is α
1Tooth top arc c
1d
1Envelope form;
d
2e
2Section: by on male rotor, the center of circle is O
5Point, radius are R
6Circular arc line segment d
1e
1Envelope form;
e
2f
2Section: on female rotor, straight line e
2f
2The section public affairs are cut in d
2e
2Section arc envelope line and circular arc f
2g
2Between, with two curves of smooth connection;
f
2g
2The section: by the center of circle on the female rotor at O
6, radius is R
3Circular arc form R
3=(0.03 ~ 0.05) R
2j, the center of circle is in nodel line;
In the said formula: R
1jBe the radius of male rotor pitch circle, R
2jRadius for the female rotor pitch circle;
The building process of said double-screw compressor molded lines of rotor is following:
The line segment of female rotor is by a
2b
2, b
2c
2, c
2d
2, d
2e
2, e
2f
2, f
2g
2Six sections compositions, the molded lines of male rotor is by a
1b
1, b
1c
1, c
1d
1, d
1e
1, e
1f
1, f
1g
1Six sections compositions;
(1) on male rotor, makes up generation curve a
1b
1, b
1c
1, c
1d
1, d
1e
1:
b
1c
1Section: at O
1O
2On the connecting line, from male rotor cylindrical line, the long L of horizontal intercepting, i.e. L=(R
1-R
1j)+(0.1 ~ 0.2) R
1j, find O
3Point is then from O
3Point is intercepting S, i.e. S=(0.85 ~ 0.95) L vertically downward), at last with O
3Point is the center, and L is a major axis, and S is a minor axis, and elliptic arc b draws
1c
1
a
1b
1Section: outside pitch circle, according to male rotor number of teeth z
1, with angle
2=(0.55 ~ 0.65) * 2 π/z
1, radius R
5, i.e. R
5=(0.05 ~ 0.1) * R
1, confirm center of circle O
4Point is with O
4Point is for the center, with R
5Be radius, draw a that circular arc is cut in root circle
1Point is cut in elliptic arc b
1c
1In b
1Point, a draws
1b
1Circular arc;
c
1d
1Section: with O
1Be the center of circle, draw the male rotor cylindrical, and draw and horizontal sextant angle α
1Ray, obtain c
1d
1Circular arc;
d
1e
1Section: on above-mentioned ray, in the cylindrical alignment, get distance R
6, i.e. R
6=(0.05 ~ 0.2) R
1j, confirm O
5Point obtains d
1e
1Circular arc;
(2) the male rotor pitch circle is done pure rolling on the female rotor pitch circle, the spin velocity of the male rotor pitch circle ratio of tarnsition velocity together is z
2/ z
1, be cemented in the circular arc a on the male rotor
1b
1, b
1c
1, c
1d
1, d
1e
1, track, form the arc envelope line a of female rotor
2b
2, elliptic arc envelope b
2c
2, arc envelope line c
2d
2, arc envelope line d
2e
2
(3) on female rotor, make up generation curve f
2g
2, e
2f
2:
f
2g
2Section: in pitch circle, according to female rotor number of teeth z
2, with angle
3=(0.3 ~ 0.4) * 2 π/z
2, radius R
3, i.e. R
3=(0.03 ~ 0.05) R
2j, confirm center of circle O
6Point is with O
6Point is for the center, with R
3Be radius, draw the g that circular arc is cut in top circle
2Point obtains f
2g
2Circular arc;
e
2f
2Section: at f
2g
2Circular arc and arc envelope line d
2e
2Between connect common tangent, promptly obtain straight line e
2f
2
(4) the female rotor pitch circle is done pure rolling on the male rotor pitch circle, the spin velocity of the female rotor pitch circle ratio of tarnsition velocity together is z
1/ z
2, be cemented in the circular arc f on the female rotor
2g
2,, e
2f
2Track, form the arc envelope line f of male rotor
1g
1, lines enveloping line e
1f
1
(5) with a of male rotor
1b
1, b
1c
1, c
1d
1, d
1e
1, e
1f
1, f
1g
1The curve combination is with number of teeth z
1, O along the center of circle
1, circumference uniform distribution promptly obtains the end face molded lines of male rotor; A with female rotor
2b
2, b
2c
2, c
2d
2, d
2e
2, e
2f
2, f
2g
2The curve combination is with number of teeth z
1, O along the center of circle
1, circumference uniform distribution promptly obtains the end face molded lines of female rotor;
So far, the negative and positive rotor end-face is built fully.
2. double-screw compressor rotor according to claim 1 is characterized in that, a of said yin, yang rotor
2, b
2, c
2, e
2, f
2, g
2, a
1, b
1,c
1, e
1, f
1, g
1Point is public point of contact.
3. double-screw compressor rotor according to claim 1 is characterized in that, on the said female rotor end face molded lines, and the circular arc f of the certain radius at passive side top circle place
2g
2With arc envelope line d
2e
2Between use straight line e
2f
2Do the smooth connection of common tangent.
4. double-screw compressor rotor according to claim 1 is characterized in that, the elliptic arc b on the said male rotor end face molded lines
1c
1, be different from conventional circular arc pin tooth curve or its envelope, through the length ratio of adjustment ellipse long and short shaft, elliptic arc b
1c
1The engagement of male rotor and female rotor is more approached steadily with disengagement.
5. double-screw compressor rotor according to claim 1 is characterized in that, the tooth top circular arc c on the said male rotor end face molded lines
1d
1Angle be to adjust, and itself and elliptic arc b
1c
1With circular arc d
1e
1Connection be tangent and for smooth.
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| CN201010602725XA CN102052322B (en) | 2010-12-23 | 2010-12-23 | Twin-screw compressor rotor profile |
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| CN201010602725XA CN102052322B (en) | 2010-12-23 | 2010-12-23 | Twin-screw compressor rotor profile |
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| CN102052322B true CN102052322B (en) | 2012-10-31 |
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| CN201010602725XA Expired - Fee Related CN102052322B (en) | 2010-12-23 | 2010-12-23 | Twin-screw compressor rotor profile |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900672B (en) * | 2011-07-27 | 2017-02-08 | 中国船舶重工集团公司第七一一研究所 | Rotor of oil-free screw compressor |
| CN102352846B (en) * | 2011-10-25 | 2013-09-18 | 上海戈里流体机械有限公司 | Oil-free dry screw compressor rotor |
| CN103452841B (en) * | 2012-05-28 | 2016-04-06 | 珠海格力电器股份有限公司 | double-screw compressor |
| DE102014105882A1 (en) | 2014-04-25 | 2015-11-12 | Kaeser Kompressoren Se | Rotor pair for a compressor block of a screw machine |
| CN106286295B (en) * | 2016-10-19 | 2018-08-28 | 上海齐耀膨胀机有限公司 | The flute profile of double-screw compressor rotor |
| CN106286296B (en) * | 2016-10-26 | 2018-07-27 | 上海齐耀膨胀机有限公司 | A kind of flute profile of double-screw compressor rotor |
| CN114607603B (en) * | 2020-12-09 | 2023-07-11 | 东北大学 | A Design Method for Rotor of Screw Vacuum Dry Pump |
| CN114719053B (en) * | 2021-03-02 | 2023-12-12 | 中国石油大学(华东) | Design method of rotary valve port structure of continuous wave generator and rotary valve |
| CN113836687B (en) * | 2021-05-20 | 2024-06-04 | 北京工业大学 | Triangular rotor engine combined cylinder molded line design method |
| CN118601887B (en) * | 2024-06-21 | 2024-11-15 | 合肥通用机械研究院有限公司 | Variable-pitch double-screw rotor tooth surface design method based on discrete points and electronic equipment |
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| US4412796A (en) * | 1981-08-25 | 1983-11-01 | Ingersoll-Rand Company | Helical screw rotor profiles |
| CN1248677A (en) * | 1998-09-23 | 2000-03-29 | 复盛股份有限公司 | Serrated form generation method for helical rotor |
| CN201232638Y (en) * | 2008-05-09 | 2009-05-06 | 郑良才 | Screw for screw compressor |
| CN101435425A (en) * | 2008-12-12 | 2009-05-20 | 中国船舶重工集团公司第七一一研究所 | Novel tooth form of screw rod rotor of double-screw compressor |
| CN101451527A (en) * | 2007-12-03 | 2009-06-10 | 万晓青 | Novel screw compressor end face serrate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008133763A (en) * | 2006-11-28 | 2008-06-12 | Hitachi Industrial Equipment Systems Co Ltd | Screw fluid machinery |
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2010
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|---|---|---|---|---|
| US4412796A (en) * | 1981-08-25 | 1983-11-01 | Ingersoll-Rand Company | Helical screw rotor profiles |
| CN1248677A (en) * | 1998-09-23 | 2000-03-29 | 复盛股份有限公司 | Serrated form generation method for helical rotor |
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|---|---|
| CN102052322A (en) | 2011-05-11 |
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