CN202056052U - Rotor assembly of 150-200 horsepower double-screw air compressor - Google Patents

Rotor assembly of 150-200 horsepower double-screw air compressor Download PDF

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Publication number
CN202056052U
CN202056052U CN2011201295261U CN201120129526U CN202056052U CN 202056052 U CN202056052 U CN 202056052U CN 2011201295261 U CN2011201295261 U CN 2011201295261U CN 201120129526 U CN201120129526 U CN 201120129526U CN 202056052 U CN202056052 U CN 202056052U
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CN
China
Prior art keywords
rotor
circular arc
tooth
arc
female rotor
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 - Lifetime
Application number
CN2011201295261U
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Chinese (zh)
Inventor
刘连科
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.)
Xiamen East Asia Machinery Industry Limited by Share Ltd
Original Assignee
XIAMEN EAST ASIA MACHINERY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XIAMEN EAST ASIA MACHINERY CO Ltd filed Critical XIAMEN EAST ASIA MACHINERY CO Ltd
Priority to CN2011201295261U priority Critical patent/CN202056052U/en
Application granted granted Critical
Publication of CN202056052U publication Critical patent/CN202056052U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a rotor assembly of a 150-200 horsepower double-screw air compressor, which relates to an air compression assembly of the air compressor. The rotor assembly is provided with one pair of female rotor and male rotor which are meshed, wherein the female rotor is provided with six left-handed teeth, and the male rotor is provided with five right-handed teeth; the coordinate resolution values of all curve segments forming the tooth form of the female rotor are from the first point: X=-58.989018, and Y=-70.162919 to the 248<th> point: X=31.268361, and Y=-86.167448; the coordinate resolution values of all curve segments forming the tooth form of the male rotor are from the first point: X=-0.000183, and Y=116.092213 to the 208<th> point: X=110.410200 and Y=35.874641; each tooth on the female rotor is provided with a tooth crest circular arc ab, a connection circular arc bc, a circular arc envelope curve cd, a circular arc envelope curve de, a circular arc envelope curve ef and a swing point protection circular arc fg; and each tooth on the male rotor is provided with circular arcs which respectively correspond to all the circular arcs on all the teeth on the female rotor: a tooth root circular arc AB, a circular arc envelope curve BC, a transitional circular arc CD, a tooth crest circular arc DE, a swing point protection circular arc EF and a circular arc envelope curve FG. The molded lines of the female rotor and the male rotor of the rotor assembly do not comprise isolated points or straight lines, thus, the rotor assembly is easy to process.

Description

A kind of rotor combination of 150-200 horsepower double-screw air compressor
Technical field
The utility model relates to a kind of Air Compressor compression assembly.
Background technique
Double-screw air compressor utilizes female rotor, the male rotor of conjugation engagement running in the cavity to export pressurized air continuously.The characteristics of female rotor, male rotor end face molded lines have determined the performance and the efficient of compressor.The manufacturer of double-screw air compressor all is devoted to the molded lines research of yin, yang rotor flute profile now, it is ZL 200820056997.2 that for example Chinese utility model patent specification CN 201180654Y discloses the patent No., name is called the technological scheme of " double-screw air compressor screw rotor ", proposes this screw rotor and comprises a pair of intermeshing female rotor and male rotor; Wherein: female rotor is established 6 teeth, and its end face molded lines is made up of three circular arc lines, arc envelope line, straight line (junction of this arc envelope line and this straight line is an isolated point), a cycloid and two circular arc lines to the top circle of next tooth in turn from the top circle of a tooth; Male rotor is established 4 teeth, and its end face molded lines is made up of two arc envelope lines, two circular arc lines, two cycloids, a circular arc line (junction of a back cycloid and this circular arc line is an isolated point) and circular arc lines to the root circle of next tooth in turn from the root circle of a tooth.The document discloses the coordinate analytic value of forming each section of female rotor profile of tooth curved section and the coordinate analytic value of forming each section of male rotor profile of tooth curved section.The disclosed technological scheme of the document has can reduce fluid dynamic loss and reduction noise, and the leakage triangle area is little.Laterally reveal advantages such as little; But its female rotor and male rotor molded lines contain isolated point, even straight line, are difficult for processing.
The model utility content
The utility model aims to provide a kind of female rotor and the male rotor molded lines does not contain isolated point and straight line, easily the rotor of the 150-200 horsepower double-screw air compressor of processing makes up.
The technical solution of the utility model is: a kind of rotor combination of 150-200 horsepower double-screw air compressor, a pair of intermeshing female rotor and male rotor are arranged, and it is characterized in that: female rotor is established 6 left-handed teeth, and male rotor is established the tooth of 5 dextrorotation; The coordinate analytic value of forming each section of female rotor profile of tooth curved section is:
The coordinate analytic value of forming each section of male rotor profile of tooth curved section is:
Each tooth is provided with tooth top circular arc ab, connection circular arc bc, arc envelope line cd, arc envelope line de, arc envelope line ef, pendulum point protection circular arc fg on the described female rotor; On the described male rotor each tooth be provided with respectively with above-mentioned female rotor on the corresponding circular arc of each circular arc of each tooth; Tooth root circular arc AB, arc envelope line BC, transition arc CD, tooth top circular arc DE, pendulum point protection circular arc EF, arc envelope line FG.
It is 5 that the male rotor number of teeth is adopted in the combination of the rotor of the utility model 150-200 horsepower double-screw air compressor, and the female rotor number of teeth is that 6 number of teeth combination can make the pressure reduction between element volume reduce, and the suction and discharge orifice area increases and helps improving compressor efficiency.Adopt the molded lines structure of the coordinate figure formation of above-mentioned yin, yang rotor, sealability between the yin, yang rotor tooth, between the volume, sealing strip by three broads stops pressurized gas to leak to low voltage terminal, and selected less leakage triangle for use, all the tooth curve is formed by circular arc and arc envelope line, and each tooth curve has been stopped isolated point, straight line, improve the rotor processibility, be convenient to adopt gear hobbing, mill, grind processing processing.The rotor combination of the utility model 150-200 horsepower double-screw air compressor, adopt above-mentioned molded lines to form, not a linear sealing in the above-mentioned molded lines engagement process but realize the flank of tooth multi-sealed to the flank of tooth in several zones fully, help and form the hydrodynamic lubrication oil film, reduce transverse leakage by Line of contact.Above-mentioned molded lines adopts less circular arc excessive, and leakage triangle is little, leaks few.Adopt the tooth top circular arc both to protect potted line to form point, be convenient to measure the male rotor external diameter again.Adopt the male rotor tooth top three-arc to connect, female rotor do not adopt circular arc take all of arc way and to the tooth top three-arc entirely with the arc envelope line engagement, the pump-absorb action of having avoided tooth curve moment engagement moment to throw off is of value to and forms oil film and reduce noise.It is streamlined that the moon, all tie points of male rotor molded lines all are that rounding off is, and resistance of air is little, reduced the fluid dynamic loss and reduced noise.All cycloids form point all the circular arc protection, therefore has better comprehensive performance.
Description of drawings
Fig. 1 is a rotor set unification embodiment's of the utility model 150-200 horsepower double-screw air compressor an end-face structure schematic representation.
Fig. 2 is the local enlarged diagram of T portion among Fig. 1.
Embodiment
A rotor set unification embodiment of the utility model 150-200 horsepower double-screw air compressor is a pair of intermeshing female rotor and male rotor, the end-face structure of this rotor combination, as shown in Figure 1.Female rotor 1 is established 6 left-handed teeth, and male rotor 2 is established the tooth of 5 dextrorotation.On the female rotor 1 on the helix angle numerical value of tooth and the male rotor 2 the helix angle numerical value of tooth be 46.2 °; On the female rotor 1 on the length of toothed region and the male rotor 2 length of toothed region be 372 millimeters; The tooth depth of male rotor 2 is that 44.8 millimeters tooth depths with female rotor 1 are 44.8 millimeters.The external diameter of female rotor 1 is 183.3 millimeters, and the external diameter of male rotor 2 is 232.2 millimeters.
The coordinate analytic value of forming female rotor 1 each section of profile of tooth curved section is:
The coordinate analytic value of forming male rotor 2 each section of profile of tooth curved sections is:
Adopt the molded lines structure of the coordinate figure formation of above-mentioned yin, yang rotor, as shown in Figure 2: each tooth is provided with tooth top circular arc ab, connection circular arc bc, arc envelope line cd, arc envelope line de, arc envelope line ef, pendulum point protection circular arc fg on the female rotor 1.On the male rotor 2 each tooth be provided with respectively with above-mentioned female rotor 1 on the corresponding circular arc of each circular arc of each tooth: tooth root circular arc AB, arc envelope line BC, transition arc CD, tooth top circular arc DE, pendulum point protection circular arc EF, arc envelope line FG.
Sealability between female rotor 1 and male rotor 2 between cog, the volume, sealing strip by three broads stops pressurized gas to leak to low voltage terminal, and selected less leakage triangle for use, and all the tooth curve is formed by circular arc and arc envelope line, and each tooth curve has been stopped isolated point and straight line.Not a linear sealing in the above-mentioned molded lines engagement process but realize the flank of tooth multi-sealed to the flank of tooth in several zones fully that adopt less circular arc excessive, leakage triangle is little, leaks few.Male rotor 2 tooth top three-arcs connect, and female rotor 1 tooth top three-arc meshes with arc envelope line entirely.It is streamlined that all tie points of the molded lines of female rotor 1 and male rotor 2 all are that rounding off is, and all cycloids form point all the circular arc protection.
The above only is the utility model preferred embodiment, does not limit the scope that the utility model is implemented with this, and the equivalence of doing according to the technical solution of the utility model and description changes and modification, all should belong to the scope that the utility model is contained.

Claims (1)

1. the rotor of 150-200 horsepower double-screw air compressor combination has a pair of intermeshing female rotor and male rotor, and it is characterized in that: female rotor is established 6 left-handed teeth, and male rotor is established the tooth of 5 dextrorotation; The coordinate analytic value of forming each section of female rotor profile of tooth curved section is,
The coordinate analytic value of forming each section of male rotor profile of tooth curved section is,
Each tooth is provided with tooth top circular arc ab, connection circular arc bc, arc envelope line cd, arc envelope line de, arc envelope line ef, pendulum point protection circular arc fg on the described female rotor; On the described male rotor each tooth be provided with respectively with above-mentioned female rotor on the corresponding circular arc of each circular arc of each tooth: tooth root circular arc AB, arc envelope line BC, transition arc CD, tooth top circular arc DE, pendulum point protection circular arc EF, arc envelope line FG.
CN2011201295261U 2011-04-27 2011-04-27 Rotor assembly of 150-200 horsepower double-screw air compressor Expired - Lifetime CN202056052U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201295261U CN202056052U (en) 2011-04-27 2011-04-27 Rotor assembly of 150-200 horsepower double-screw air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201295261U CN202056052U (en) 2011-04-27 2011-04-27 Rotor assembly of 150-200 horsepower double-screw air compressor

Publications (1)

Publication Number Publication Date
CN202056052U true CN202056052U (en) 2011-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201295261U Expired - Lifetime CN202056052U (en) 2011-04-27 2011-04-27 Rotor assembly of 150-200 horsepower double-screw air compressor

Country Status (1)

Country Link
CN (1) CN202056052U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728117A (en) * 2015-02-17 2015-06-24 上海偌托新能源科技有限公司 Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728117A (en) * 2015-02-17 2015-06-24 上海偌托新能源科技有限公司 Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine
CN104728117B (en) * 2015-02-17 2017-03-22 上海偌托新能源科技有限公司 Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine

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GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: Tongan District of Xiamen City, Fujian province 361000 Xi Ke Zhen Xi Ke Street No. 611

Patentee after: Xiamen East Asia Machinery Industry Limited by Share Ltd

Address before: Tongan District of Xiamen City, Fujian province 361000 Xi Ke Zhen Xi Ke Street No. 611

Patentee before: Xiamen East Asia Machinery Co., Ltd.

C56 Change in the name or address of the patentee
CX01 Expiry of patent term

Granted publication date: 20111130

CX01 Expiry of patent term