CN101089396A - Screw molded lines of symmetric figure screw air compressor - Google Patents
Screw molded lines of symmetric figure screw air compressor Download PDFInfo
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- CN101089396A CN101089396A CN 200710069882 CN200710069882A CN101089396A CN 101089396 A CN101089396 A CN 101089396A CN 200710069882 CN200710069882 CN 200710069882 CN 200710069882 A CN200710069882 A CN 200710069882A CN 101089396 A CN101089396 A CN 101089396A
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- screw
- screw rods
- air compressor
- circular arc
- rod
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Abstract
The present invention discloses a screw mould line of symmetric screw air compressor. It is characterized by that the tooth profile of one screw is three-head male screw, and the tooth profile of another screw is six-head female screw. It can be used in the screw air compressor, and has good sealing performance, and can raise output flow quantity and output pressure greatly.
Description
Technical field
The present invention relates to the Course Exercise in Machinery Elements Design processing technique field, especially, relate to a kind of screw molded lines of symmetric figure screw-rod air compressor.
Background technique
Existing all screw air compressors are bull, profile of tooth complexity.Such as, have plenty of four teeth to six teeth, have plenty of five teeth to six teeth.Each tooth is formed by reaching seven sections curves, as the GHH molded lines of Germany and the multiple Sheng molded lines in Taiwan.Because its number is many, the curve complexity, so processed complex, amount of finish is big, and the discharge capacity of all existing screw air compressors is all little, and though gas transmission continuously, flow pulsation is little, and delivery pressure is lower eventually, and specific discharge is less, and overall efficiency is lower.
Profile of tooth of the present invention is compared with above-mentioned various profiles of tooth, and specific discharge and specific power increase exponentially, and processing is still more convenient.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of screw molded lines of symmetric figure screw-rod air compressor is provided, the profile of tooth of one root screw rod is six, and another root is three.
In order to achieve the above object, the technical solution used in the present invention is as follows: a kind of screw molded lines of symmetric figure screw-rod air compressor, screw air compressor comprise two screw rods, and wherein a screw rod is three screw rods, and another root screw rod is six screw rods; The profile of tooth of every screw rod of six screw rods is identical, and wherein one is linked in sequence by radial alignment ab, generalized cycloidal bc, generalized cycloidal cd, radial alignment de and top circle camber line ef and forms; Wherein, top circle camber line ef is with o
1Circular arc for the center of circle; The profile of tooth of two screw rod of three screw rods is identical and symmetrical, and be symmetrically distributed along circumference, wherein one is linked in sequence by root circle camber line e ' d ', generalized cycloidal d ' c ', envelope c ' b ', generalized cycloidal b ' a ', generalized cycloidal a ' f ', envelope f ' g ' and generalized cycloidal g ' h ' and forms; Wherein, root circle camber line e ' d ' is with o
2Circular arc for the center of circle; The radian of circular arc e ' d ' is the twice of the radian of circular arc de on six screw rods on three screw rods.
Further, the radial alignment ab of described six screw rods and de also can be circular arc, quadratic curve, cycloid or involute; The helical pitch of described six tooth shape of screw is that the generalized cycloidal bc and the cd of described six screw rods of the twice of three screw rod helical pitches also can be circular arc or elliptic arc, and its conjugate curve corresponding on three screw rods then are respectively envelope a ' b ' and a ' f '.
The invention has the beneficial effects as follows: potted line is shorter, good seal performance; Specific discharge and specific power are multiplied, the efficient height, and running is steady, and noise is little; Screw curve is simple, and is easy to process, and processing cost is low; Screw rod can run up.
Description of drawings
Fig. 1 is the longitudinal section view of six screw rods of the present invention;
Fig. 2 is the longitudinal section view of three screw rods of the present invention;
Fig. 3 is two screw rods illustrated in figures 1 and 2 engagement figure when doing to roll;
Fig. 4 is two screw rods illustrated in figures 1 and 2 pitch curve figure when doing to roll.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done detailed explanation.
Screw air compressor of the present invention comprises two screw rods, and wherein a screw rod is three screw rods, and another root screw rod is six screw rods.
Fig. 1 shows the shape of six screw rod radial cross sections of the present invention, the profile of tooth of every screw rod of six screw rods is identical, and evenly distribute along circumference, wherein one is linked in sequence by radial alignment ab, generalized cycloidal bc, generalized cycloidal cd, radial alignment de and top circle camber line ef and forms; Wherein, top circle camber line ef is with o
1Circular arc for the center of circle; Radius and the radian of top circle camber line ef are all adjustable, the length-adjustable of radial alignment ab and de, and ab also can be circular arc, quadratic curve, cycloid, straight line or other curves, also can omit, and generalized cycloidal bc and cd also can be circular arc or elliptic arc.
Fig. 2 shows the shape of three screw rod radial cross sections of the present invention, the profile of tooth of every screw rod of three screw rods is identical, and be symmetrically distributed along circumference, wherein one is linked in sequence by root circle camber line e ' d ', generalized cycloidal d ' c ', envelope c ' b ', generalized cycloidal b ' a ', generalized cycloidal a ' f ', envelope f ' g ' and generalized cycloidal g ' h ' and forms; Wherein, root circle camber line e ' d ' is with o
2Circular arc for the center of circle.
When three screw rods and six screw rods with 2: 1 speed ratio when rotate in the center of circle separately, generalized cycloidal bc is the conjugate curve that formed on six screw rods in three a ' on the screw rod o'clock on six screw rods, radial alignment ab is three conjugate curve that the envelope b ' c ' on the screw rod forms on six screw rods on six screw rods, generalized cycloidal cd is the conjugate curve that formed on six screw rods in three a ' on the screw rod o'clock on six screw rods, radial alignment de is three conjugate curve that the envelope f ' g ' on the screw rod forms on six screw rods on six screw rods, on three screw rods generalized cycloidal a ' b ' and c ' d ' be respectively six on the screw rod the b point and the conjugate curve that on three screw rods, formed in a o'clock, envelope b ' c ' is the conjugate curve that six radial alignment ba on the screw rod form on three screw rods, on three screw rods generalized cycloidal a ' f ' and g ' h ' be respectively six on the screw rod the d point and the conjugate curve that on three screw rods, formed in e o'clock, envelope f ' g ' is the conjugate curve that six radial alignment de on the screw rod form on three screw rods.
The radian of circular arc d ' e ' is the twice of the radian of circular arc de on six screw rods on three screw rods.
The helical pitch of six tooth shape of screw is twices of three screw rods, and the two screw rods rotation direction is opposite.
Fig. 3 shows the meshing relation of two screw rods correspondence of the present invention, the pitch curve of six screw rod top circle ef correspondences is root circle d ' e ' of three screw rods, put on three screw rods a ' should be on six screw rods generalized cycloidal bc, point b and some a correspond respectively to generalized cycloidal a ' b ' and generalized cycloidal c ' d ' on three screw rods on six screw rods, radial alignment ab is corresponding to the envelope b ' c ' on three screw rods on six screw rods, put a ' on three screw rods corresponding to generalized cycloidal cd on six screw rods, point d and some e correspond respectively to generalized cycloidal a ' f ' and generalized cycloidal g ' h ' on three screw rods on six screw rods, and radial alignment de is corresponding to the envelope f ' g ' on three screw rods on six screw rods.
As shown in Figure 4, when two screw rods rolled relatively, six screw rods will form the space pitch curve on three screw rods, and three screw rods also can form corresponding pitch curve on six screw rods.Because it is continuous rotating, two pitch curves have been blocked the input cavity and the output cavity of air compressor, and constantly push ahead, thereby produce compressed fluid.
The foregoing description is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (4)
1, a kind of screw molded lines of symmetric figure screw-rod air compressor, air compressor comprise two screw rods, and a screw rod is three screw rods, and another root screw rod is six screw rods; It is characterized in that,
The profile of tooth of every screw rod of six screw rods is identical, and evenly distributes along circumference, and wherein one is linked in sequence by radial alignment ab, generalized cycloidal bc, generalized cycloidal cd, radial alignment de and top circle camber line ef and forms; Wherein, top circle camber line ef is with o
1Circular arc for the center of circle.
The profile of tooth of every screw rod of three screw rods is identical and symmetrical, and be symmetrically distributed along circumference, wherein one is linked in sequence by root circle camber line e ' d ', generalized cycloidal d ' c ', envelope c ' b ', generalized cycloidal b ' a ', generalized cycloidal a ' f ', envelope f ' g ' and generalized cycloidal g ' h ' and forms; Wherein, root circle camber line e ' d ' is with o
2Circular arc for the center of circle.
The radian of circular arc e ' d ' is the twice of the radian of circular arc de on six screw rods on three screw rods.
2, the screw molded lines of symmetric figure screw-rod air compressor according to claim 1 is characterized in that, the radial alignment ab of described six screw rods and de also can be circular arc, quadratic curve, cycloid or involute.
3, the tooth shape of screw of big flow screw air compressor according to claim 1 is characterized in that, the helical pitch of described six tooth shape of screw is twices of double threaded screw helical pitch.
4, the screw molded lines of symmetric figure screw-rod air compressor according to claim 1, it is characterized in that, the generalized cycloidal bc and the cd of described six screw rods also can be circular arc or elliptic arc, and its conjugate curve corresponding on three screw rods then are respectively envelope a ' b ' and a ' f '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710069882 CN101089396A (en) | 2007-07-03 | 2007-07-03 | Screw molded lines of symmetric figure screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710069882 CN101089396A (en) | 2007-07-03 | 2007-07-03 | Screw molded lines of symmetric figure screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101089396A true CN101089396A (en) | 2007-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710069882 Pending CN101089396A (en) | 2007-07-03 | 2007-07-03 | Screw molded lines of symmetric figure screw air compressor |
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| CN (1) | CN101089396A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726439A (en) * | 2018-04-03 | 2018-11-02 | 淮北智淮科技有限公司 | A kind of transfer device of screw-rod air compressor |
| CN110080980A (en) * | 2019-03-28 | 2019-08-02 | 中国石化工程建设有限公司 | A kind of flute profile of dual-screw-stem machine rotor |
-
2007
- 2007-07-03 CN CN 200710069882 patent/CN101089396A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726439A (en) * | 2018-04-03 | 2018-11-02 | 淮北智淮科技有限公司 | A kind of transfer device of screw-rod air compressor |
| CN108726439B (en) * | 2018-04-03 | 2019-11-12 | 淮北雷德机电科技有限公司 | A kind of transfer device of screw-rod air compressor |
| CN110080980A (en) * | 2019-03-28 | 2019-08-02 | 中国石化工程建设有限公司 | A kind of flute profile of dual-screw-stem machine rotor |
| CN110080980B (en) * | 2019-03-28 | 2021-03-09 | 中国石化工程建设有限公司 | Tooth profile of double-screw machine rotor |
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