CN201771760U - Screw compressor rotor - Google Patents

Screw compressor rotor Download PDF

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Publication number
CN201771760U
CN201771760U CN2010205165277U CN201020516527U CN201771760U CN 201771760 U CN201771760 U CN 201771760U CN 2010205165277 U CN2010205165277 U CN 2010205165277U CN 201020516527 U CN201020516527 U CN 201020516527U CN 201771760 U CN201771760 U CN 201771760U
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CN
China
Prior art keywords
rotor
female
male
curved surface
circular arc
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.)
Expired - Fee Related
Application number
CN2010205165277U
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Chinese (zh)
Inventor
汤炎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG KAISHAN KEVIN SCREW MACHINERY CO Ltd
Original Assignee
ZHEJIANG KAISHAN KEVIN SCREW MACHINERY CO Ltd
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Application filed by ZHEJIANG KAISHAN KEVIN SCREW MACHINERY CO Ltd filed Critical ZHEJIANG KAISHAN KEVIN SCREW MACHINERY CO Ltd
Priority to CN2010205165277U priority Critical patent/CN201771760U/en
Application granted granted Critical
Publication of CN201771760U publication Critical patent/CN201771760U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a screw compressor rotor, including a female rotor (1) and a male rotor (2) which are characterized in that they are in bilateral asymmetry; the composition curves are circular arc or circular arc envelope lines; a gear ratio of female and male rotors is 6:5; a gap between the female rotor (1) and the male rotor (2) is 0.06-0.12mm; female and male rotors are completely sealed in a manner of curved surface-to-curved surface so as to benefit formation of a fluid dynamic lubricating film and reduce a horizontal leakage through the contact zone; and compared with products with an equal power grade, the rotor has maximum diameter and maximum center distance. The utility model has good sealing performance, high efficiency, low rotating speed, low noise, small vibration and long service life and is convenient for processing and detecting.

Description

A kind of rotor of helical lobe compressor
Technical field
The utility model relates to a kind of rotor, relates in particular to a kind of rotor of helical lobe compressor.
Background technique
In the helical-lobe compressor, the shape of rotor has determined the performance of helical-lobe compressor substantially, existing in the world at present representational molded lines of rotor mainly contains: the molded lines of German GHH company, the SRM molded lines of Sweden ATLAS company, the molded lines of company is contained in Taiwan again, molded lines of HIT or the like, these molded lines are chosen different curves and combination thereof, mainly form,, have pluses and minuses separately because the design orientation is different by ellipse, circular arc, arc envelope line, point, straight line, cycloid etc.Because above-mentioned rotor of helical lobe compressor is made up of different molded lines, produce transverse leakage at contact zones easily, reduce the efficient of compressor, and the diameter of these helical-lobe compressor rotors is all less, thereby rotating speed is higher, in actual use noise, the vibration bigger, and the rigidity deficiency influences its working life, and the complexity of molded lines of rotor of helical lobe compressor design, also cause its processing method more complicated, bigger to the receptance of machining accuracy, impurity and oily carbide.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of novel rotor of helical lobe compressor, it compared with prior art, it is the sealing that between rotor, realizes " curved surface is to curved surface " fully, and do not comprise the sealing of any " curve-curve ", help to form the hydrodynamic lubrication film, reduction improves compressor efficiency by the transverse leakage of contact zones; Compare with the rotor of power range with other types, increase its diameter and centre distance, reduce its rotating speed, thereby reduce noise and vibration, and its rigidity is improved, thereby prolong its working life; Since fully be curved surface to curved surface, be convenient to adopt grinding, also easier check, less to the receptance of machining accuracy, impurity and oily carbide.
The purpose of this utility model can reach by following measure: a kind of rotor of helical lobe compressor, comprise female rotor 1 and male rotor 2, female rotor 1 and male rotor 2 bilateral asymmetric, forming curve is circular arc or arc envelope line, realize the sealing of " curved surface is to curved surface " between rotor fully, the gear ratio of negative and positive rotor is 6: 5, and the negative and positive gap between rotor is 0.06～0.12mm, central point with female rotor 1 is a true origin, and the gapped actual profile coordinate of female rotor 1, male rotor 2 is as follows:
Figure BDA0000025630700000021
Figure BDA0000025630700000031
Figure BDA0000025630700000041
Figure BDA0000025630700000051
Figure BDA0000025630700000071
Figure BDA0000025630700000081
Figure BDA0000025630700000091
Figure BDA0000025630700000101
Figure BDA0000025630700000111
Figure BDA0000025630700000121
Figure BDA0000025630700000131
Figure BDA0000025630700000141
Figure BDA0000025630700000151
Figure BDA0000025630700000171
Figure BDA0000025630700000181
Figure BDA0000025630700000201
Figure BDA0000025630700000211
Figure BDA0000025630700000221
Figure BDA0000025630700000231
Figure BDA0000025630700000241
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the present utility model is elaborated: as shown in the figure, a kind of rotor of helical lobe compressor, the helical-lobe compressor that is used for 185～220 kw of power scopes, it comprises female rotor 1 and male rotor 2, female rotor 1 and male rotor 2 bilateral asymmetric, form curve and be circular arc or arc envelope line, the number of teeth of female rotor 1 is 6, the number of teeth of male rotor 2 is 5, the negative and positive gap between rotor is 0.09mm, central point with female rotor 1 is a true origin, and the gapped actual profile coordinate of female rotor 1, male rotor 2 is as follows.
Figure BDA0000025630700000242
Figure BDA0000025630700000251
Figure BDA0000025630700000261
Figure BDA0000025630700000271
Figure BDA0000025630700000281
Figure BDA0000025630700000291
Figure BDA0000025630700000301
Figure BDA0000025630700000321
Figure BDA0000025630700000331
Figure BDA0000025630700000341
Figure BDA0000025630700000351
Figure BDA0000025630700000371
Figure BDA0000025630700000381
Figure BDA0000025630700000391
Figure BDA0000025630700000411
Figure BDA0000025630700000421
Figure BDA0000025630700000441
Figure BDA0000025630700000451
Figure BDA0000025630700000461

Claims (2)

1. rotor of helical lobe compressor, comprise female rotor (1) and male rotor (2), female rotor (1) and male rotor (2) bilateral asymmetric, forming curve is circular arc and arc envelope line, the gear ratio of negative and positive rotor is 6: 5, it is characterized in that the gap between described female rotor (1) and the male rotor (2) is 0.06～0.12mm, is true origin with the central point of female rotor (1), and the gapped actual profile coordinate of female rotor (1), male rotor (2) is as follows:
Figure FDA0000025630690000011
Figure FDA0000025630690000021
Figure FDA0000025630690000031
Figure FDA0000025630690000041
Figure FDA0000025630690000051
Figure FDA0000025630690000061
Figure FDA0000025630690000071
Figure FDA0000025630690000081
Figure FDA0000025630690000091
Figure FDA0000025630690000101
Figure FDA0000025630690000111
Figure FDA0000025630690000121
Figure FDA0000025630690000131
Figure FDA0000025630690000141
Figure FDA0000025630690000151
Figure FDA0000025630690000171
Figure FDA0000025630690000181
Figure FDA0000025630690000191
Figure FDA0000025630690000201
Figure FDA0000025630690000211
Figure FDA0000025630690000221
Figure 20102051652771000011
2. a kind of rotor of helical lobe compressor as claimed in claim 1 is characterized in that the gap between female rotor and the male rotor is 0.09mm.
CN2010205165277U 2010-09-03 2010-09-03 Screw compressor rotor Expired - Fee Related CN201771760U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205165277U CN201771760U (en) 2010-09-03 2010-09-03 Screw compressor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205165277U CN201771760U (en) 2010-09-03 2010-09-03 Screw compressor rotor

Publications (1)

Publication Number Publication Date
CN201771760U true CN201771760U (en) 2011-03-23

Family

ID=43751606

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205165277U Expired - Fee Related CN201771760U (en) 2010-09-03 2010-09-03 Screw compressor rotor

Country Status (1)

Country Link
CN (1) CN201771760U (en)

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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: 20110323

Termination date: 20190903

CF01 Termination of patent right due to non-payment of annual fee