CN104963859A - Vane type cam air blower - Google Patents
Vane type cam air blower Download PDFInfo
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- CN104963859A CN104963859A CN201510457466.9A CN201510457466A CN104963859A CN 104963859 A CN104963859 A CN 104963859A CN 201510457466 A CN201510457466 A CN 201510457466A CN 104963859 A CN104963859 A CN 104963859A
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- rotor
- male rotor
- countershaft
- female rotor
- blower fan
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Abstract
The invention belongs to the technical field of air blowers, and in particular relates to a vane type cam air blower. The vane type cam air blower comprises a female rotor, a male rotor, an enclosure, a main shaft, an auxiliary shaft, a gear box, an auxiliary fuel tank, a front cover and a rear cover, wherein the female rotor sleeves the main shaft, the male rotor sleeves the auxiliary shaft, a pair of synchromesh gears is arranged on each of the main shaft and the auxiliary shaft, the size of the female rotor is smaller than that of the male rotor, the female rotor is meshed with the male rotor under the action of the synchromesh gears, and the female rotor and the male rotor rotate in sequence towards different directions under drive of the synchromesh gears. Compared with the prior art, the concave surface and the transitional surface of the female rotor are precisely matched with the convex surface and the transitional surface of the male rotor, respectively; the female rotor and the enclosure as well as the male rotor and the enclosure are matched, so that abundant gas can be compressed to an air outlet efficiently; and the female rotor and the male rotor are sealed in 360 degrees, so that air leakage possibility is small, and the efficiency can achieve 80% or above.
Description
Technical field
The invention belongs to blower technical field, particularly relate to a kind of blade type drum cam blower fan of efficient, low noise.
Background technique
At present, blower common is on the market Roots blower, its structure as shown in Figure 1, its two lobed rotor 20 mainly comprising casing 10 and be placed in casing 10, the shape of two lobed rotor 20 is identical with size, it mainly utilizes two lobed rotor 20 compress do relative movement in casing 10 and carry gas, this blower relies on the synchromesh gear of rotor axle head to make two rotors 20 keep engagement, on rotor 20, each recessed curvature portion and casing 10 inwall form swept volume, gas is brought into from intakeport in rotor 20 turning course, when moving on to the moment be connected with relief opening near relief opening, because there being the gas backstreaming of elevated pressures, at this moment the pressure initiation forced exhaust in swept volume.Due to the excesssive gap of two rotors 20, make two rotor 20 alternations successively.Cause the Leakage Gas of more than 40%.This blower fan structure is simple, but owing to periodically inhaling, being vented and the compression of instantaneous isometric(al) causes the pulsation of airspeed and pressure, thus larger aerodynamic noise can be produced, in addition, between rotor 20, and the gap between rotor 20 and casing 10 is (as a on Fig. 1, b, shown in c tri-, little gap is 0.25mm ~ 0.3mm, and large gap even reaches 0.4mm ~ 0.5mm) can Leakage Gas be caused, thus make its efficiency lower, be only about 60% ~ 65%, consume the energy.
In view of this, necessaryly provide a kind of blade type drum cam blower fan, between its rotor, and the good airproof performance between rotor and casing, Leakage Gas is little, and efficiency can reach more than 80%, and noise is very little.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and blade type drum cam blower fan is provided, between its rotor, and the good airproof performance between rotor and casing, Leakage Gas is little, and efficiency can reach more than 80%, and noise is very little.
In order to achieve the above object, the present invention adopts following technological scheme:
A kind of blade type drum cam blower fan, comprise female rotor, male rotor, casing, main shaft, countershaft, gear-box, drop tank, protecgulum and bonnet, described female rotor is sheathed on described main shaft, described male rotor is sheathed on described countershaft, described casing is provided with intake grill and exhaust outlet, described female rotor, described male rotor, described main shaft and described countershaft are all arranged in described casing, described main shaft and described countershaft arrange a pair synchromesh gear respectively, the size of described female rotor is less than the size of described male rotor, described female rotor and described male rotor intermesh under the effect of described synchromesh gear, and described female rotor and described male rotor are opposite spin successively under the driving of described synchromesh gear, described protecgulum and described bonnet are arranged at the front-end and back-end of described casing respectively, described drop tank is arranged on described protecgulum, described gear-box is arranged on described bonnet.
One as blade type drum cam blower fan of the present invention is improved, described female rotor is provided with female rotor axis hole and several arc-shaped depression portion, the first curved transition sections is formed between adjacent described arc-shaped depression portion, described male rotor is provided with male rotor axis hole and several arc convex, the second curved transition sections is formed between adjacent described arc convex, and described arc-shaped depression portion is identical with the quantity of described arc convex, in rotation process, described arc-shaped depression portion and described arc convex Spielpassung.
One as blade type drum cam blower fan of the present invention is improved, the inwall Spielpassung of described first curved transition sections and described casing, the inwall Spielpassung of described arc convex and described casing.
One as blade type drum cam blower fan of the present invention is improved, and described arc-shaped depression portion and described arc convex are all set to three.
One as blade type drum cam blower fan of the present invention is improved, the radian of described arc-shaped depression portion is all equal, the radian of described arc convex is all equal, and the outer peripheral radian of described first curved transition sections is all equal, and the outer peripheral radian of described second curved transition sections is all equal.
One as blade type drum cam blower fan of the present invention is improved, and the two ends of described main shaft are supported by clutch shaft bearing and the second bearing respectively, and described clutch shaft bearing and described second bearing are all arranged on bearing support.
One as blade type drum cam blower fan of the present invention is improved, and one end of described countershaft is fixed on countershaft and is covered, and described male rotor is fixed on described countershaft and covers.
One as blade type drum cam blower fan of the present invention is improved, and described main shaft and described countershaft are provided with labyrinth bush, and described synchromesh gear is by gearset spacer and round nut locking.
One as blade type drum cam blower fan of the present invention is improved, and described main shaft and described countershaft is all arranged with oil thrower ring, one end of the close described male rotor of described countershaft lid is provided with disc.
One as blade type drum cam blower fan of the present invention is improved, and described synchromesh gear is arranged in gear-box, and described gear-box is arranged at the outside of described bonnet.
Relative to prior art, the present invention at least tool has the following advantages:
First, what formed between the arc convex of the arc-shaped depression portion of female rotor and the first curved transition sections and male rotor and the second curved transition sections high-accuracyly coordinates, and a large amount of gas can be compressed to exhaust outlet by close fit between female rotor and casing and between male rotor and casing well efficiently, because female rotor and male rotor compression process 360 ° are in sealing, therefore Leakage Gas is minimum, and efficiency can reach more than 80%;
Second, rotor of the prior art needs to adopt advanced Machining of Curved Surface center machine tool and traditional shaping machine, work efficiency is low, female rotor of the prior art and male rotor are then without the need to using the said equipment, processing is more simple, and speed is faster, and practice shows: the speed that the speed of processing female rotor of the present invention and male rotor processes rotor of the prior art than employing said method is fast again, therefore, manufacture cost of the present invention is lower;
3rd, in the present invention, male rotor is combined part, during assembling, can assemble according to required precision, during replacing, all can dismantle, keep in repair very convenient;
4th, easy for installation, one-time positioning, without the need to adjusting play, without any collision and friction, therefore noise is minimum, and temperature rise is very little.
Accompanying drawing explanation
Fig. 1 is the partial cross structural representation of Roots blower of the prior art.
Wherein:
10-casing, 20-rotor;
Fig. 2 is plan structure schematic diagram of the present invention (part is broken away).
Fig. 3 is part-structure schematic diagram of the present invention.
Fig. 4 is the structural representation of female rotor in the present invention.
Fig. 5 is the structural representation of male rotor in the present invention.
Wherein, 1-female rotor, 11-female rotor axis hole, 12-arc-shaped depression portion, 13-first curved transition sections, 2-male rotor, 21-arc convex, 22-second curved transition sections, 23-male rotor axis hole, 3-casing, 4-synchromesh gear, 41-gearset spacer, 42-round nut, 43-gear-box, 5-main shaft, 51-second bearing, 52-bearing support, 6-countershaft, 7-drop tank, 8-protecgulum, 9-bonnet, 14-labyrinth bush.
Embodiment
Below with reference to specifically implementing the present invention and being effectively described in further detail, but the specific embodiment of the present invention is not limited to this.
As shown in Figures 2 to 5, a kind of blade type drum cam blower fan provided by the invention, comprise female rotor 1, male rotor 2, casing 3, main shaft 5, countershaft 6, gear-box 43, drop tank 7, protecgulum 8 and bonnet 9, female rotor 1 is sheathed on main shaft 5, male rotor 2 is sheathed on countershaft 6, casing 3 is provided with intake grill and exhaust outlet, female rotor 1, male rotor 2, main shaft 5 and countershaft 6 are all arranged in casing 3, main shaft 5 and countershaft 6 arrange a pair synchromesh gear 4 respectively, the size of female rotor 1 is less than the size of male rotor 2, female rotor 1 and male rotor 2 intermesh under the effect of synchromesh gear 4, and female rotor 1 and male rotor 2 are opposite spin successively under the driving of synchromesh gear 4, protecgulum 8 and bonnet 9 are arranged at the front-end and back-end of casing 3 respectively, drop tank 7 is arranged on protecgulum 8, gear-box 43 is arranged on bonnet 9.In the present invention, the size and dimension of female rotor 1 and male rotor 2 is all different.
Female rotor 1 is provided with female rotor axis hole 11 and several arc-shaped depression portion 12, the first curved transition sections 13 is formed between adjacent arc-shaped depression portion 12, male rotor 2 is provided with male rotor axis hole 23 and several arc convex 21, the second curved transition sections 22 is formed between adjacent arc convex 21, and arc-shaped depression portion 12 is identical with the quantity of arc convex 21, in rotation process, arc-shaped depression portion 12 and arc convex 21 Spielpassung.Female rotor 1 and male rotor 2 close fit, thus gas leakage can be reduced greatly.In the present embodiment, arc-shaped depression portion 12 and arc convex 21 are all set to three, and the sectional shape of female rotor 1 can be described as: on a plectane, removing three pieces, to remove edges be the structure that the plate body of arc is formed; The structure of male rotor then can be described as: the block of outstanding three similar circles " ear " on a plectane.Casing in the present invention is then in Pear Shaped.
The inwall Spielpassung of the first curved transition sections 13 and casing 3, the inwall Spielpassung of arc convex 21 and casing 3.And the gap between female rotor 1 and casing 3 is about 0.1mm, the gap between male rotor 1 and casing 3 is also about 0.1mm, and the gap between female rotor and male rotor transitional surface is 0.05mm-0.07mm, thus can reduce gas leakage greatly.
The radian of arc-shaped depression portion 12 is all equal, and the radian of arc convex 21 is all equal, and the outer peripheral radian of the first curved transition sections 13 is all equal, and the outer peripheral radian of the second curved transition sections 22 is all equal.In the present embodiment, three arc-shaped depression portion 12 distribute axisymmetricly, and its symmetry axis is the connecting line through the center of female rotor axis hole 11 with the outer peripheral center of one of them the first curved transition sections 13; Three arc convex 21 also distribute axisymmetricly, and its symmetry axis is the connecting line by the outer peripheral center of one of them arc convex 21 and the outer peripheral center of second curved transition sections 22 relative with this arc convex 21.
The two ends of main shaft 5 are supported by clutch shaft bearing and the second bearing 51 respectively, and clutch shaft bearing and the second bearing 51 are all arranged on bearing support 52, and to support the rotation of female rotor 1, clutch shaft bearing and the second bearing 51 are arranged on protecgulum 8 and bonnet 9 respectively.
One end of countershaft 6 is fixed on countershaft and is covered, and male rotor 2 is fixed on countershaft and covers, and countershaft 6 can drive countershaft lid synchronous axial system, and then drives male rotor 2 synchronous axial system.That is, in the present invention, male rotor 2 is combined parts.
Main shaft 5 and countershaft 6 are provided with labyrinth bush 14, and to guarantee sealing, prevent gas leakage and pollutant from entering in blower, guarantee the axial installation precision of main shaft 5 and countershaft 6, the utilization efficiency of blower fan can be made higher, transmission is more steadily reliable.Synchromesh gear 4 is locked by gearset spacer 41 and round nut 42, to prevent synchromesh gear 4 from unnecessary displacement occurring, guarantees the installation precision of synchromesh gear.
Main shaft 5 and countershaft 6 are all arranged with oil thrower ring, one end of the close male rotor of countershaft lid is provided with disc, to guarantee the lubrication of bearing and gear.
Synchromesh gear 4 is arranged in gear-box 43, thus the cavity that formation one is airtight, gear-box 43 is arranged at the outside of bonnet 9.
During use, the synchromesh gear 4 that rotates through of female rotor 1 drives male rotor 2 to rotate, thus realizes the synchronous axial system of female rotor 1 and male rotor 2, under the cooperation of female rotor 1 and male rotor 2, realizes air compressing.Specifically: the arc-shaped depression portion 12 on female rotor 1 forms swept volume with the inwall of casing 3, gas is brought into from intake grill in the turning course of female rotor 1, when gas to move on near exhaust outlet and is communicated with exhaust outlet, because there being the gas backstreaming of elevated pressures, this is the pressure initiation forced exhaust of swept volume, then delivers gas to exhaust passage.The present invention utilizes the concavo-convex and transition part of female rotor 1 and male rotor 2 to coordinate fully and realizes Efficient Compression, and due to the special construction of female rotor 1 and male rotor 2, a, b, c tri-sealings at place are fabulous, and Leakage Gas is minimum, and efficiency reaches more than 80%.
In a word, the present invention at least tool have the following advantages:
First, what formed between the arc convex 21 of the arc-shaped depression portion 12 of female rotor 1 and the first curved transition sections 13 and male rotor 2 and the second curved transition sections 22 high-accuracyly coordinates, and a large amount of gas can be compressed to exhaust outlet by close fit between female rotor 1 and casing 3 and between male rotor 2 and casing 3 well efficiently, because female rotor 1 and male rotor 2 compression process 360 ° are in sealing, therefore Leakage Gas is minimum, and efficiency can reach more than 80%;
Second, rotor of the prior art needs to adopt advanced Machining of Curved Surface lathe and traditional shaping machine, work efficiency is low, female rotor 1 of the prior art and male rotor 2 are then without the need to using the said equipment, processing is more simple, and speed is faster, and practice shows: the speed that the speed of processing female rotor 1 of the present invention and male rotor 2 processes rotor of the prior art than employing said method is fast again, therefore, processing cost of the present invention is lower;
3rd, in the present invention, male rotor 2 is combined parts, during assembling, can assemble according to required precision, during replacing, all can dismantle, keep in repair very convenient;
4th, easy for installation, one-time positioning, without the need to adjusting play, without any collision and friction, therefore noise is minimum.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned mode of execution.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (10)
1. a blade type drum cam blower fan, it is characterized in that: comprise female rotor, male rotor, casing, main shaft, countershaft, gear-box, drop tank, protecgulum and bonnet, described female rotor is sheathed on described main shaft, described male rotor is sheathed on described countershaft, described casing is provided with intake grill and exhaust outlet, described female rotor, described male rotor, described main shaft and described countershaft are all arranged in described casing, described main shaft and described countershaft arrange a pair synchromesh gear respectively, the size of described female rotor is less than the size of described male rotor, described female rotor and described male rotor intermesh under the effect of described synchromesh gear, and described female rotor and described male rotor are opposite spin successively under the driving of described synchromesh gear, described protecgulum and described bonnet are arranged at the front-end and back-end of described casing respectively, described drop tank is arranged on described protecgulum, described gear-box is arranged on described bonnet.
2. blade type drum cam blower fan according to claim 1, it is characterized in that: described female rotor is provided with female rotor axis hole and several arc-shaped depression portion, the first curved transition sections is formed between adjacent described arc-shaped depression portion, described male rotor is provided with male rotor axis hole and several arc convex, the second curved transition sections is formed between adjacent described arc convex, and described arc-shaped depression portion is identical with the quantity of described arc convex, in rotation process, described arc-shaped depression portion and described arc convex Spielpassung.
3. blade type drum cam blower fan according to claim 2, is characterized in that: the inwall Spielpassung of described first curved transition sections and described casing, the inwall Spielpassung of described arc convex and described casing.
4. blade type drum cam blower fan according to claim 1, is characterized in that: described arc-shaped depression portion and described arc convex are all set to three.
5. the blade type drum cam blower fan according to claim 1 or 4, it is characterized in that: the radian of described arc-shaped depression portion is all equal, the radian of described arc convex is all equal, and the outer peripheral radian of described first curved transition sections is all equal, the outer peripheral radian of described second curved transition sections is all equal.
6. blade type drum cam blower fan according to claim 1, is characterized in that: the two ends of described main shaft are supported by clutch shaft bearing and the second bearing respectively, and described clutch shaft bearing and described second bearing are all arranged on bearing support.
7. blade type drum cam blower fan according to claim 1, it is characterized in that: one end of described countershaft is fixed on countershaft and is covered, described male rotor is fixed on described countershaft and covers.
8. blade type drum cam blower fan according to claim 1, is characterized in that: described main shaft and described countershaft are provided with labyrinth bush, and described synchromesh gear is by gearset spacer and round nut locking.
9. blade type drum cam blower fan according to claim 7, is characterized in that: described main shaft and described countershaft are all arranged with oil thrower ring, one end of the close described male rotor of described countershaft lid is provided with disc.
10. blade type drum cam blower fan according to claim 1, it is characterized in that: described synchromesh gear is arranged in gear-box, described gear-box is arranged at the outside of described bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457466.9A CN104963859A (en) | 2015-07-30 | 2015-07-30 | Vane type cam air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457466.9A CN104963859A (en) | 2015-07-30 | 2015-07-30 | Vane type cam air blower |
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| Publication Number | Publication Date |
|---|---|
| CN104963859A true CN104963859A (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457466.9A Pending CN104963859A (en) | 2015-07-30 | 2015-07-30 | Vane type cam air blower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087264A (en) * | 2017-11-21 | 2018-05-29 | 燕山大学 | Pulse free high-order oval convex wheel pump |
| CN108953147A (en) * | 2018-07-28 | 2018-12-07 | 周信城 | cam compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071328A (en) * | 1990-05-29 | 1991-12-10 | Schlictig Ralph C | Double rotor compressor with two stage inlets |
| CN2238925Y (en) * | 1995-12-01 | 1996-10-30 | 长沙鼓风机厂 | Roots blower |
| CN2276084Y (en) * | 1996-02-29 | 1998-03-11 | 长沙鼓风机厂 | Negative pressure Roots blower |
| CN2310183Y (en) * | 1997-06-17 | 1999-03-10 | 西安交通大学 | Teeth type end face exhausting blower |
| CN2881160Y (en) * | 2006-01-19 | 2007-03-21 | 高举成 | Rotary volume compressor |
| CN203906277U (en) * | 2014-06-05 | 2014-10-29 | 宜兴优纳特机械有限公司 | High-pressure air-cooled Roots blower |
-
2015
- 2015-07-30 CN CN201510457466.9A patent/CN104963859A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071328A (en) * | 1990-05-29 | 1991-12-10 | Schlictig Ralph C | Double rotor compressor with two stage inlets |
| CN2238925Y (en) * | 1995-12-01 | 1996-10-30 | 长沙鼓风机厂 | Roots blower |
| CN2276084Y (en) * | 1996-02-29 | 1998-03-11 | 长沙鼓风机厂 | Negative pressure Roots blower |
| CN2310183Y (en) * | 1997-06-17 | 1999-03-10 | 西安交通大学 | Teeth type end face exhausting blower |
| CN2881160Y (en) * | 2006-01-19 | 2007-03-21 | 高举成 | Rotary volume compressor |
| CN203906277U (en) * | 2014-06-05 | 2014-10-29 | 宜兴优纳特机械有限公司 | High-pressure air-cooled Roots blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087264A (en) * | 2017-11-21 | 2018-05-29 | 燕山大学 | Pulse free high-order oval convex wheel pump |
| CN108953147A (en) * | 2018-07-28 | 2018-12-07 | 周信城 | cam compressor |
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Application publication date: 20151007 |
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