CN101403389A - Disrotatory axial fan - Google Patents
Disrotatory axial fan Download PDFInfo
- Publication number
- CN101403389A CN101403389A CNA2008102322733A CN200810232273A CN101403389A CN 101403389 A CN101403389 A CN 101403389A CN A2008102322733 A CNA2008102322733 A CN A2008102322733A CN 200810232273 A CN200810232273 A CN 200810232273A CN 101403389 A CN101403389 A CN 101403389A
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- blower fan
- axial flow
- fan
- shaft
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/007—Axial-flow pumps multistage fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/024—Multi-stage pumps with contrarotating parts
Abstract
The invention relates to the manufacture field of an axial flow fan and discloses a counter-rotating axial flow fan. The fan comprises an electric motor (1), an air drum (2), and a forestage impeller (3), a backstage impeller (4), and a gear box (18) which are arranged in the air drum. The fan is characterized in that a gear box (10) is internally provided with a forestage bevel gear (15), a backstage bevel gear (16) and a driving bevel gear (17), wherein, the driving bevel gear (17) is respectively meshed with the forestage bevel gear (15) and the backstage bevel gear (16), the forestage bevel gear (15) is connected with the rotating shaft of a forestage fan (11), the backstage bevel gear (16) is connected with the rotating shaft of a backstage fan (12), and the driving bevel gear (17) is connected with a driving shaft (18) which extends out of the outer side of the air drum (2) along the radial direction and is connected with the rotating shaft of the electric motor (1).
Description
Technical field
The present invention relates to axial-flow blower and make the field, particularly a kind of to the axial flow rotary blower fan.
Background technique
The axial flow rotary blower fan mainly is made up of air duct and front and back stages, and every grade mainly comprises impeller and drive motor.The axial flow rotary blower fan is had efficient height, pressure head height, characteristics that noise is low, be widely used in each national economy industries such as coal, metallurgy, electric power.The driving mode of axial-flow blower is at present, and every grade impeller directly is fixed on the motor, and motor is placed in the sleeve, and sleeve is by being supported and fixed on the air duct.
Above-mentioned driving mode causes existing there is following shortcoming in the axial flow rotary blower fan:
1. motor easy burn-out.Because motor is installed in the sleeve, the heat radiation of the motor that sleeve can influence, therefore when the blower fan proper functioning, motor burns out easily, again because other reasons, the reason of pneumatic design for example, the variation of operating mode etc., the probability that makes motor burn out is higher, at present nearly all case that all had motor to burn out to axial flow rotary blower fan manufacturer.
2. the maintenance inconvenience of blower fan.When motor breaks down, want to keep in repair motor or change motor, all need to take apart the cylindrical shell of blower fan, waste time and energy.
3. blower fan weight is big.Because motor is placed in the blower fan body, causes blower fan weight very big, is inconvenient to install and transport.
4. restrict axial flow rotary blower fan large scale development.Need in the engineering at present high-head, big air quantity to the axial flow rotary blower fan, but the structure to the axial flow rotary blower fan causes big motor can't be installed in the blower fan body, and because problems such as heat radiation easily make motor break down, therefore can't be to large scale development to the axial flow rotary blower fan.
5. cost is too high during specific use.For example: when the axial flow rotary blower fan was used for coalmine ventilation, because requirement of explosion proof, fan motor was an anti-explosion motor, and with respect to common electric machine, the blower fan cost is very high.
Summary of the invention
The present invention is directed to have now there are the problems referred to above in the axial flow rotary blower fan, provide a kind of novel, can conveniently solve motor radiating and blower fan maintenance problem, alleviate blower fan weight the axial flow rotary blower fan, make to the safe operation stably for a long time of axial flow rotary blower fan, reduce cost and to large scale development.
In order to address the above problem, the present invention is technological scheme by the following technical solutions: a kind of to the axial flow rotary blower fan, comprise: motor, air duct, be arranged on the prime blower fan in the air duct, back level blower fan, gear-box, it is characterized in that, before being provided with in the described gear-box, back level bevel gear and drive bevel gear, described drive bevel gear is respectively with preceding, back level bevel gear engagement, described prime bevel gear is connected with the prime fan shaft, described back bevel gear is connected with back level fan shaft, and described drive bevel gear connects a driving shaft, and described driving shaft extends radially out the air duct outside and is connected with machine shaft.
Improvement of the present invention is:
Described prime impeller shaft passes the prime bevel gear, and back level impeller shaft passes back level bevel gear, and two rotating shafts are stretched out relatively and be mutually nested by isolation bearing.
Described prime impeller shaft passes the prime bevel gear, and back level impeller shaft passes back level bevel gear, and two rotating shafts are stretched out relatively, and mutually nested by two isolation bearings of axially spaced-apart setting.
Described gear-box is provided with two driving shaft positioning bearings along the air duct spaced radial, is tightly fixed with driving shaft.
Described gear-box is provided with forward and backward level positioning bearing along the axial two ends of air duct, and is tightly fixed with forward and backward level impeller shaft respectively.
Described forward and backward level impeller shaft is away from the gear-box end forward and backward level spring bearing that has been tightly fixed respectively, and described air duct is provided with forward and backward level support, fixes described forward and backward level spring bearing respectively.
Further characteristics of the present invention are:
Described isolation bearing adopts tapered roller bearing.
Described driving shaft positioning bearing adopts tapered roller bearing.
Described forward and backward level positioning bearing adopts tapered roller bearing.
Described forward and backward level spring bearing adopts tapered roller bearing.
The present invention to axial flow rotary blower fan driving mode, has following advantage with respect to existing:
1. owing to electric machine external, improved the radiating condition of motor greatly, can thoroughly solve existing problem axial flow rotary fan motor easy burn-out.
2. owing to electric machine external, greatly facilitate the maintenance of motor, when motor breaks down, can change motor very easily, do not need dismounting blower fan body.
3. owing to electric machine external, reduce the weight of blower fan body, made things convenient for the transportation of blower fan, installation and maintenance.
4. because electric machine external can adopt big motor driving blower fan,, satisfy of the requirement of axial flow rotary blower fan to large scale development to satisfy powerful occasion.
5. when axial-flow blower is used for coalmine ventilation,, therefore drive blower fan, can reduce mining cost significantly like this, can satisfy of the requirement of mining counter-rotating fan simultaneously to large scale development to the axial flow rotary blower fan with common electric machine because coal-seam gas no longer flows through motor.
Description of drawings
Below in conjunction with description of drawings and embodiment the present invention is described in further detail.
Fig. 1 is that the present invention is to axial flow rotary blower fan structure schematic representation;
Fig. 2 is the gear box structure schematic representation;
Among the figure: the 1-motor; The 2-air duct; 3-prime blower fan; Level blower fan behind the 4-; 5-prime positioning bearing; The 6-intermediate support; Level positioning bearing behind the 7-; 8-prime support; Level support behind the 9-; The 10-gear-box; 11-prime fan shaft; Level fan shaft behind the 12-; 13-prime spring bearing; Level spring bearing behind the 14-; 15-prime bevel gear; Level bevel gear behind the 16-; The 17-drive bevel gear; The 18--driving shaft; 19-driving shaft positioning bearing; The 20-coupling; 21-prime impeller; Level impeller behind the 22-; The 23-isolation bearing.
Embodiment
With reference to Fig. 1, Fig. 2, of the present invention to the axial flow rotary blower fan, mainly comprise: motor 1, air duct 2 is arranged on forward and backward level impeller 3,4 and gear-box 10 in the air duct 1.Gear-box 10 is fixed on the air duct 2 by intermediate support 6 between forward and backward level impeller 3,4, and at gear-box 10 two ends, be provided with forward and backward positioning bearing 5,7 along the axial position of air duct 2.The outside at forward and backward level impeller 21,22 is provided with forward and backward support 8,9, and forward and backward support 8,9 is fixed on the air duct 2, the center of forward and backward support 8,9, and promptly the axial direction of air duct 2 is fixed with forward and backward level spring bearing 13,14 respectively.Prime impeller shaft 11 is tightly fixed on prime spring bearing 13 and prime positioning bearing 5, and prime impeller 21 is between above-mentioned two bearings.Equally, back level fan shaft 12 is tightly fixed on back level spring bearing 14 and back level positioning bearing 7, and back level impeller 22 is between above-mentioned two bearings.
Be provided with forward and backward level bevel gear 15,16 and drive bevel gear 17 in the gear-box 10, drive bevel gear 17 meshes with forward and backward level bevel gear 15,16 respectively, axis and air duct 2 deads in line of forward and backward level bevel gear 15,16, drive bevel gear 17 axis intersect vertical with air duct 2 axis.Prime bevel gear 15 is connected with prime fan shaft 11, and back level bevel gear 16 is connected with back level fan shaft 12.Drive bevel gear 17 connects a driving shaft 18, and driving shaft 18 is tightly fixed on two driving shaft positioning bearings 19 that gear-box 10 is provided with along air duct 2 spaced radials, and stretches out air duct 2 outsides and be connected by coupling 20 with motor 1 rotating shaft.
Driving process of the present invention is as follows: motor 1 drives driving shaft 18 by coupling 20, driving shaft 18 drives the drive bevel gear 17 of end, drive bevel gear 17 drives prime bevel gear 15 and back level bevel gear 16 simultaneously, and make their rotation direction opposite, thereby reach 21,22 pairs of purposes of revolving of forward and backward level impeller.
Claims (10)
1, a kind of to the axial flow rotary blower fan, comprise: motor (1), air duct (2), be arranged on the prime blower fan (3) in the air duct, back level blower fan (4), gear-box (18), it is characterized in that, before being provided with in the described gear-box (10), back level bevel gear (15,16) and drive bevel gear (17), described drive bevel gear (17) is respectively with preceding, back level bevel gear (15,16) engagement, described prime bevel gear (15) is connected with prime fan shaft (11), described back bevel gear (16) is connected with back level fan shaft (12), described drive bevel gear (17) connects a driving shaft (18), and described driving shaft (18) extends radially out air duct (2) outside and is connected with motor (1) rotating shaft.
2, according to claim 1 a kind of to the axial flow rotary blower fan, it is characterized in that, described prime fan shaft (11) passes prime bevel gear (15), and a back level fan shaft (12) passes that back level bevel gear (16) two rotating shafts are stretched out relatively and be mutually nested by isolation bearing (23).
3, according to claim 1 a kind of to the axial flow rotary blower fan, it is characterized in that, described prime fan shaft (11) passes prime bevel gear (15), back level fan shaft (12) passes back level bevel gear (16), two rotating shafts are stretched out relatively, and mutually nested by two isolation bearings (23) of axially spaced-apart (23) setting.
4, according to claim 1ly a kind ofly the axial flow rotary blower fan be is characterized in that described gear-box (10) is provided with two driving shaft positioning bearings (19) along air duct (2) spaced radial, be tightly fixed with driving shaft (18).
5, according to claim 1 a kind of to the axial flow rotary blower fan, it is characterized in that, described gear-box (10) along air duct axle (2) to two ends be provided with forward and backward level positioning bearing (5,7), and be tightly fixed with forward and backward level impeller shaft (11,12) respectively.
6, according to claim 1 a kind of to the axial flow rotary blower fan, it is characterized in that, described forward and backward level fan shaft (11,12) is held the forward and backward level spring bearing (13,14) that has been tightly fixed respectively away from gear-box (10), described air duct (2) is provided with forward and backward level support (8,9), fixes described forward and backward level spring bearing (13,14) respectively.
7, according to claim 2 or 3 described a kind of the axial flow rotary blower fan be is characterized in that, described isolation bearing (23) adopts tapered roller bearing.
8, according to claim 4 a kind of the axial flow rotary blower fan be is characterized in that, described driving shaft positioning bearing (19) adopts tapered roller bearing.
9, according to claim 5 a kind of the axial flow rotary blower fan be is characterized in that, described forward and backward level positioning bearing (5,7) adopts tapered roller bearing.
10, according to claim 6 a kind of the axial flow rotary blower fan be is characterized in that, described forward and backward level spring bearing (13,14) adopts tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102322733A CN101403389A (en) | 2008-11-14 | 2008-11-14 | Disrotatory axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102322733A CN101403389A (en) | 2008-11-14 | 2008-11-14 | Disrotatory axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101403389A true CN101403389A (en) | 2009-04-08 |
Family
ID=40537499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102322733A Pending CN101403389A (en) | 2008-11-14 | 2008-11-14 | Disrotatory axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101403389A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975178A (en) * | 2010-11-19 | 2011-02-16 | 苏州顶裕节能设备有限公司 | Vertical shaft fan |
| CN101994713A (en) * | 2009-08-26 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Fan and electronic device provided with same |
| CN102808792A (en) * | 2012-06-05 | 2012-12-05 | 陈江枫 | External motor type axial flow fan |
| CN103486058A (en) * | 2013-08-19 | 2014-01-01 | 平安电气股份有限公司 | Contra-rotating axial-flow fan with lateral external-type one-driving-two motor |
| CN103527499A (en) * | 2013-11-08 | 2014-01-22 | 广西科技大学鹿山学院 | Electric fan with two blades |
| CN103562062A (en) * | 2011-05-26 | 2014-02-05 | 容器科技有限公司 | External motor-type bidirectional pump |
| CN104454588A (en) * | 2014-11-15 | 2015-03-25 | 马钢(集团)控股有限公司 | Axial flow fan for coke oven dust removal system |
| CN104482117A (en) * | 2014-11-22 | 2015-04-01 | 太原理工大学 | Contra-rotating impeller ventilating driving device |
| WO2016138602A1 (en) * | 2015-03-05 | 2016-09-09 | 李耀中 | Fluid straight-through machine and manufacturing method thereof |
| WO2016197283A1 (en) * | 2015-06-12 | 2016-12-15 | 太原理工大学 | Ventilation device with contra-rotating impellers driven by long shaft |
| CN107191395A (en) * | 2017-05-26 | 2017-09-22 | 湖北工程学院 | To axial flow rotary booster and ventilating system |
| CN108252928A (en) * | 2017-12-11 | 2018-07-06 | 安徽颐博思泵业有限责任公司 | Novel vertical just tears pipeline pump open |
| CN111648986A (en) * | 2020-05-18 | 2020-09-11 | 江苏大学镇江流体工程装备技术研究院 | Axial-flow type jet fan |
| CN112642810A (en) * | 2020-12-18 | 2021-04-13 | 张风才 | Motor device with air purging structure |
| CN114396388A (en) * | 2021-12-15 | 2022-04-26 | 贵州盘江煤层气开发利用有限责任公司 | Opposite-rotating axial flow fan capable of adjusting pressure |
-
2008
- 2008-11-14 CN CNA2008102322733A patent/CN101403389A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994713B (en) * | 2009-08-26 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Fan and electronic device provided with same |
| CN101994713A (en) * | 2009-08-26 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Fan and electronic device provided with same |
| CN101975178A (en) * | 2010-11-19 | 2011-02-16 | 苏州顶裕节能设备有限公司 | Vertical shaft fan |
| CN103562062B (en) * | 2011-05-26 | 2016-03-02 | 容器科技有限公司 | There is the two-way pump of external motors |
| CN103562062A (en) * | 2011-05-26 | 2014-02-05 | 容器科技有限公司 | External motor-type bidirectional pump |
| CN102808792A (en) * | 2012-06-05 | 2012-12-05 | 陈江枫 | External motor type axial flow fan |
| CN103486058A (en) * | 2013-08-19 | 2014-01-01 | 平安电气股份有限公司 | Contra-rotating axial-flow fan with lateral external-type one-driving-two motor |
| CN103486058B (en) * | 2013-08-19 | 2016-02-03 | 平安电气股份有限公司 | Motor side external formula one drag two counter-rotating axial fan |
| CN103527499B (en) * | 2013-11-08 | 2016-03-09 | 广西科技大学鹿山学院 | With the electric fan of Dual-blade |
| CN103527499A (en) * | 2013-11-08 | 2014-01-22 | 广西科技大学鹿山学院 | Electric fan with two blades |
| CN104454588A (en) * | 2014-11-15 | 2015-03-25 | 马钢(集团)控股有限公司 | Axial flow fan for coke oven dust removal system |
| AU2015349532B2 (en) * | 2014-11-22 | 2019-03-21 | Taiyuan University Of Technology | Transmission apparatus for contra-rotating impeller ventilation |
| CN104482117A (en) * | 2014-11-22 | 2015-04-01 | 太原理工大学 | Contra-rotating impeller ventilating driving device |
| WO2016138602A1 (en) * | 2015-03-05 | 2016-09-09 | 李耀中 | Fluid straight-through machine and manufacturing method thereof |
| WO2016197283A1 (en) * | 2015-06-12 | 2016-12-15 | 太原理工大学 | Ventilation device with contra-rotating impellers driven by long shaft |
| CN107191395A (en) * | 2017-05-26 | 2017-09-22 | 湖北工程学院 | To axial flow rotary booster and ventilating system |
| CN107191395B (en) * | 2017-05-26 | 2019-02-12 | 湖北工程学院 | To axial flow rotary booster and ventilating system |
| CN108252928A (en) * | 2017-12-11 | 2018-07-06 | 安徽颐博思泵业有限责任公司 | Novel vertical just tears pipeline pump open |
| CN111648986A (en) * | 2020-05-18 | 2020-09-11 | 江苏大学镇江流体工程装备技术研究院 | Axial-flow type jet fan |
| CN112642810A (en) * | 2020-12-18 | 2021-04-13 | 张风才 | Motor device with air purging structure |
| CN114396388A (en) * | 2021-12-15 | 2022-04-26 | 贵州盘江煤层气开发利用有限责任公司 | Opposite-rotating axial flow fan capable of adjusting pressure |
| CN114396388B (en) * | 2021-12-15 | 2023-10-13 | 贵州盘江煤层气开发利用有限责任公司 | Disrotatory axial flow fan with adjustable pressure |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |