CN101082337A - Screw rod line of symmetrical shaped high flow rate screw air compressor - Google Patents
Screw rod line of symmetrical shaped high flow rate screw air compressor Download PDFInfo
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- CN101082337A CN101082337A CN 200710069877 CN200710069877A CN101082337A CN 101082337 A CN101082337 A CN 101082337A CN 200710069877 CN200710069877 CN 200710069877 CN 200710069877 A CN200710069877 A CN 200710069877A CN 101082337 A CN101082337 A CN 101082337A
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- 238000007789 sealing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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Abstract
The invention discloses a screw line of symmetric shape large flow screw type air compressor. Double-joint tooth profile is used in Yang screw and five-joint used in Ying screw. Seal line used in double screw air compressor is short and has good sealing. Output flow and output pressure are increased duplication. The invention has high efficiency, low noise, simple screw curve, convenient processing and low cost of processing.
Description
Technical field
The present invention relates to the Course Exercise in Machinery Elements Design processing technique field, especially, relate to the screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure.
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, the screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure is provided, the profile of tooth of one root screw rod is five, and another root is a double end.
In order to achieve the above object, the technical solution used in the present invention is as follows: the screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure, screw air compressor comprise two screw rods, and wherein a screw rod is a double threaded screw, and another root screw rod is five screw rods; The profile of tooth of every screw rod of five 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 two screw rod of double threaded screw 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 two sesquialters of the radian of circular arc ef on five screw rods on the double threaded screw.
Further, the radial alignment ab of described five screw rods and de also can be circular arc, quadratic curve, cycloid or involute; Further, the helical pitch of described five tooth shape of screw is two sesquialters of double threaded screw helical pitch; The generalized cycloidal bc and the cd of described five screw rods also can be circular arc or elliptic arc, and its conjugate curve corresponding on double threaded screw 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 five screw rods of the present invention;
Fig. 2 is the longitudinal section view of double threaded screw 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 a double threaded screw, and another root screw rod is five screw rods.
Fig. 1 shows the shape of five screw rod radial cross sections of the present invention, the profile of tooth of every screw rod of five 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 and de also can be circular arc, quadratic curve, cycloid, involute 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 double threaded screw radial cross section of the present invention, the profile of tooth of two screw rod of double threaded screw 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 double threaded screw and five screw rods with 2.5: 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 a ' o'clock on the double threaded screw on five screw rods, radial alignment ab is the conjugate curve that the envelope b ' c ' on the double threaded screw forms on five screw rods on five screw rods, generalized cycloidal cd is the conjugate curve that formed on five screw rods in a ' o'clock on the double threaded screw on five screw rods, radial alignment de is the conjugate curve that the envelope f ' g ' on the double threaded screw forms on six screw rods on five screw rods, generalized cycloidal a ' b ' and c ' d ' are respectively five b point and conjugate curve of forming on double threaded screw of a point on the screw rod on the double threaded screw, envelope b ' c ' is five conjugate curve that the radial alignment ba on the screw rod forms on double threaded screw, generalized cycloidal a ' f ' and g ' h ' are respectively five d point and conjugate curve of forming on double threaded screw of e point on the screw rod on the double threaded screw, and envelope f ' g ' is five conjugate curve that the radial alignment de on the screw rod forms on double threaded screw.
The radian of circular arc d ' e ' is two sesquialters of the radian of circular arc de on five screw rods on the double threaded screw.
The helical pitch of five tooth shape of screw is two sesquialters of double threaded screw, 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 five screw rod top circle ef correspondences is root circle d ' e ' of double threaded screw, put on the double threaded screw a ' should be on five screw rods generalized cycloidal bc, point b and some a correspond respectively to generalized cycloidal a ' b ' and generalized cycloidal c ' d ' on the double threaded screw on five screw rods, radial alignment ab is corresponding to the envelope b ' c ' on the double threaded screw on five screw rods, put a ' on the double threaded screw corresponding to generalized cycloidal cd on five screw rods, point d and some e correspond respectively to generalized cycloidal a ' f ' and generalized cycloidal g ' h ' on the double threaded screw on five screw rods, and radial alignment de is corresponding to the envelope f ' g ' on the double threaded screw on five screw rods.
As shown in Figure 4, when two screw rods rolled relatively, five screw rods will form the space pitch curve on double threaded screw, and double threaded screw also can form corresponding pitch curve on five 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 utility model and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (4)
1, the screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure, air compressor comprises two screw rods, and a screw rod is a double threaded screw, and another root screw rod is five screw rods; It is characterized in that,
The profile of tooth of every screw rod of five 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 two screw rod of double threaded screw 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 two sesquialters of the radian of circular arc de on five screw rods on the double threaded screw.
2, the screw molded lines of the big flow screw-rod air compressor of symmetric figure according to claim 1 is characterized in that, the radial alignment ab of described five screw rods and de also can be circular arc, quadratic curve, cycloid or involute.
3, the screw molded lines of the big flow screw-rod air compressor of symmetric figure according to claim 1 is characterized in that, the helical pitch of described five tooth shape of screw is two sesquialters of double threaded screw helical pitch.
4, the screw molded lines of the big flow screw-rod air compressor of symmetric figure according to claim 1, it is characterized in that, the generalized cycloidal bc and the cd of described five screw rods also can be circular arc or elliptic arc, and its conjugate curve corresponding on double threaded screw then are respectively envelope a ' b ' and a ' f '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100698776A CN100538079C (en) | 2007-07-03 | 2007-07-03 | The screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100698776A CN100538079C (en) | 2007-07-03 | 2007-07-03 | The screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101082337A true CN101082337A (en) | 2007-12-05 |
| CN100538079C CN100538079C (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100698776A Expired - Fee Related CN100538079C (en) | 2007-07-03 | 2007-07-03 | The screw molded lines of the big flow screw-rod air compressor of a kind of symmetric figure |
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| Country | Link |
|---|---|
| CN (1) | CN100538079C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400913A (en) * | 2011-10-29 | 2012-04-04 | 黄山众拓工业泵制造有限公司 | Seal type tooth-form molded line screw rod |
-
2007
- 2007-07-03 CN CNB2007100698776A patent/CN100538079C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400913A (en) * | 2011-10-29 | 2012-04-04 | 黄山众拓工业泵制造有限公司 | Seal type tooth-form molded line screw rod |
| CN102400913B (en) * | 2011-10-29 | 2014-04-16 | 黄山众拓工业泵制造有限公司 | Seal type tooth-form molded line screw rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100538079C (en) | 2009-09-09 |
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Granted publication date: 20090909 Termination date: 20110703 |