CN215058283U - Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system - Google Patents
Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system Download PDFInfo
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- CN215058283U CN215058283U CN202022655148.2U CN202022655148U CN215058283U CN 215058283 U CN215058283 U CN 215058283U CN 202022655148 U CN202022655148 U CN 202022655148U CN 215058283 U CN215058283 U CN 215058283U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
本实用新型公开了一种单动力驱动的三级对旋轴流式通风机及通风系统，属于通风装置技术领域。该通风机包括壳体、设于壳体两端的进风筒、出风筒及位于壳体内部的动力源，动力源的左右两端各设置动力输出端一和动力输出端二，动力输出端一连接转动轴，转动轴上设有第一叶轮，动力输出端二连接联轴器一端，联轴器另一端连接变速器，变速器上设有第一动力轴、套设于第一动力轴外围的第二动力轴，第一动力轴连接第二叶轮，第二动力轴连接第三叶轮。该通风机由一个动力源控制三个叶轮，在提高通风量基础上内部结构布局紧凑，适用于矿山井下局部通风或隧道通风等相关领域。
The utility model discloses a single-power-driven three-stage counter-rotating axial flow fan and a ventilation system, which belong to the technical field of ventilation devices. The ventilator includes a casing, an air inlet duct and an air outlet duct located at both ends of the casing, and a power source located inside the casing. The left and right ends of the power source are respectively provided with a power output end and a power output end. The power output end One is connected to the rotating shaft, the first impeller is arranged on the rotating shaft, and the second end of the power output is connected to one end of the coupling, and the other end of the coupling is connected to the transmission. The second power shaft, the first power shaft is connected with the second impeller, and the second power shaft is connected with the third impeller. The fan is controlled by one power source with three impellers, and the internal structure is compact on the basis of improving the ventilation volume, and is suitable for local ventilation in mines or tunnel ventilation and other related fields.
Description
Technical Field
The utility model relates to a ventilation blower belongs to ventilation unit technical field, specifically relates to a single power driven tertiary counter-rotating axial-flow type ventilation blower and ventilation system.
Background
The ventilator is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. Ventilators are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and sorting of grains, wind tunnel wind sources, inflation and propulsion of air cushion boats, and the like.
The contra-rotating axial-flow ventilator converts mechanical energy into gas pressure and kinetic energy through a pair of impellers which rotate in opposite directions, and has the characteristics of high efficiency, high pressure head and low noise.
The ventilation efficiency of the presently disclosed counter-rotating axial-flow ventilator is not high.
The chinese utility model patent (grant No. CN2777249Y, grant No. 2006-5-3) discloses a multistage double-speed contra-rotating axial flow type local ventilator, which comprises two stages, three stages or four stages or even more stages of adjacent impellers respectively mounted in adjacent two-stage cylinders, and a double-speed motor is used as a motor for driving the rotation of the impellers, and the impellers of the contra-rotating fan respectively driven by the double-speed motor are mounted on the same axis, thereby realizing the combination of various stages and rotating speeds. However, the above ventilator needs a two-speed motor for each driving impeller, and the structure is complicated in actual installation, which causes inconvenience in use.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a single power drive's tertiary counter-rotating axial-flow fan and ventilation system, this fan inside only sets up a power supply, and this power supply can drive three impeller simultaneously and rotate, and simultaneously, partly impeller is located the air inlet section of thick bamboo other, and remaining impeller is located the air outlet section of thick bamboo other, is favorable to improving ventilation efficiency.
In order to realize the above-mentioned purpose, the utility model discloses a tertiary counter-rotating axial-flow fan of single power drive, it includes the casing, locates the air inlet section of thick bamboo, the play dryer at casing both ends and being located the inside power supply of casing, both ends respectively set up power take off end one and power take off end two about the power supply, the power take off end connects the axis of rotation, be equipped with first impeller in the axis of rotation, shaft coupling one end is connected to power take off end two, the derailleur is connected to the shaft coupling other end, be equipped with first power shaft on the derailleur, the cover is located first power shaft outlying second power shaft, first power shaft is connected the second impeller, second power shaft is connected the third impeller.
Further, the second impeller and the third impeller are located on the same side of the transmission and located on the opposite side of the power source than the first impeller.
Furthermore, the first impeller faces the air inlet drum, and the second impeller and the third impeller are arranged close to the air outlet drum.
Furthermore, the transmission is also provided with n first gears and n +/-1 second gears between the first power shaft and the second power shaft, n is a positive integer greater than 1, and the power input end of the transmission is connected with the first power shaft.
Furthermore, a first gear is fixed on the first power shaft, a (n +/-1) th gear is fixed on the second power shaft, the nth gear and the first gear are fixed on the same shaft, gear teeth of the first gear are meshed with each other, and gear teeth of the second gear are meshed with each other.
Further, the first gear and the second gear are both cylindrical gears.
Further, a bearing is arranged between the outer side of the first power shaft and the inner side of the second power shaft.
Further, the rotating shaft is in key joint with the first impeller, the first power shaft is in key joint with the second impeller, and the second power shaft is in key joint with the third impeller.
Further, the power source is a motor, the motor is a single-speed motor or a multi-speed motor, and when the motor is the single-speed motor, a frequency conversion device can be added.
For better realization the utility model discloses the technical purpose, the utility model also discloses a ventilation system, it is including adopting above-mentioned ventilation blower.
The beneficial effects of the utility model are that:
1. the utility model discloses a ventilator which is driven by a motor to control three impellers, thereby saving the inner space of the ventilator on the premise of ventilation volume;
2. the utility model discloses a part of impellers in the ventilator are arranged close to the air inlet cylinder, and the rest impellers are arranged close to the air outlet cylinder, so that the bearing at both sides of one motor can be utilized, and the purpose that one motor and one speed changer drive as many impellers as possible is realized, thereby improving the air quantity and the air pressure of the ventilator;
3. the utility model discloses a ventilation blower all sets up the impeller at air inlet bobbin nose, air-out bobbin nose, can make near air current all take place the disturbance when in-service use, is applicable to relevant fields such as local ventilation in the pit of mine or tunnel ventilation.
Drawings
Fig. 1 is a left side view of a ventilator designed by the present invention;
FIG. 2 is a front view of the ventilator of FIG. 1;
FIG. 3 is a partial cross-sectional view of the transmission of FIG. 2;
wherein, the numbering of each part in the above-mentioned figure is as follows:
a housing 1 (inner housing 1a, outer housing 1 b);
a lifting lug 2;
a ground margin 3;
an air inlet drum 4;
an air outlet cylinder 5;
a filter screen 6;
a dome 7;
a power source 8 (a power input end 8a, a power output end I8 b-1 and a power output end II 8 b-2);
a rotating shaft 9;
a coupling 10;
a transmission 11 (a power input end 11a, a first power shaft 11.1, a second power shaft 11.2, a first gear 11.3 (wherein: the first gear 11.3a, the nth gear 11.3b), a second gear 11.4 (wherein: the (n +/-1) th gear 11.4a, the first gear 11.4 b));
a first impeller 12;
a second impeller 14;
a third impeller 13;
a wire box 15;
a flange 16.
Detailed Description
The utility model discloses a double dynamical driven level four is to revolving axial-flow fan, as shown in fig. 1, this ventilation blower includes and encloses synthetic casing 1 by interior casing 1a and shell body 1b, just interior casing 1a and shell body 1b pass through flange 16 fixed connection, 1 outside top of casing is equipped with lug 2 and wire box 12, and the bottom is equipped with lower margin 3.
As can be seen from fig. 2, an air inlet cylinder 4 and an air outlet cylinder 5 are respectively arranged at the left end and the right end of the outer shell 1b, a filter screen 6 and a dome 7 are arranged in the air inlet cylinder 4, and a dome 7 is also arranged in the air outlet cylinder 5; wherein the filter screen 6 is used for preventing overlarge foreign matters from entering the interior of the ventilator to damage the impeller.
Meanwhile, be located between air inlet cylinder 4, the play dryer 5 still be equipped with a power supply 8 in the casing 1, the utility model discloses preferred power supply 8 is the motor, and simultaneously, this motor is multispeed motor or single-speed motor and adds variable frequency speed control device, thereby the purpose that adopts multispeed motor or single-speed motor to add variable frequency speed control device is realized adjusting the ventilation blower rotational speed and adjusts its flow and wind pressure. While the motor is directly connected to the external wire box 15.
The left end and the right end of the motor are respectively provided with a first power output end 8b-1 and a second power output end 8b-2, the first power output end 8b-1 is connected with a rotating shaft 9, a first impeller 12 is arranged on the rotating shaft 9, the second power output end 8b-2 is connected with one end of a coupler 10, the other end of the coupler 10 is connected with a speed changer 11, a first power shaft 11.1 and a second power shaft 11.2 which is sleeved on the periphery of the first power shaft 11.1 are arranged on the speed changer 11, the first power shaft 11.1 is connected with a second impeller 14, and the second power shaft 11.2 is connected with a third impeller 13. Meanwhile, as can be seen from fig. 2, the second impeller 13 and the third impeller 14 are located on the same side of the transmission 11 and are located on a side opposite to the power source 8 with respect to the first impeller 12. The first impeller 12 faces the air inlet drum 4, and the second impeller 14 and the third impeller 13 are arranged close to the air outlet drum 5. The utility model discloses still can select will the derailleur is close to the setting of an air inlet section of thick bamboo, like this, has two impellers to be close to an air inlet section of thick bamboo, and an impeller is close to out a tuber pipe, though the figure does not embody this position relation, but it is really in the utility model discloses in the protection range. The arrangement has the advantages that on one hand, the bearings on two sides of one motor can be utilized, and the purpose that one motor and one speed changer drive impellers as many as possible is achieved, so that the air volume and the air pressure of the ventilator are improved; on the other hand all sets up the impeller at air inlet cylinder end, air outlet cylinder end, can make near air current all take place the disturbance when the in-service use, is applicable to relevant fields such as local ventilation or tunnel ventilation in the mine.
The utility model discloses a realize the coaxial antiport between first power axle 11.1 and the second power axle 11.2, at each still set up the gear in the derailleur 11, realize coaxial reversal through gear drive.
Specifically, as can be seen from fig. 3, the present invention selects to set n first gears 11.3 and (n ± 1) second gears 11.4 between each first power shaft 11.1 and the second power shaft 11.2, where n is a positive integer greater than 1, where a first gear 11.3a is fixed on the first power shaft 11.1, a second gear 11.4a is fixed on the second power shaft 11.2, a first gear 11.3b and a second gear 11.4b are fixed on the same shaft, the teeth of the first gears 11.3 are engaged with each other, and the teeth of the second gears 11.4 are engaged with each other. And the first gear 11.3 and the second gear 11.4 are cylindrical gears.
Fig. 3 of the present invention shows that the first gear 11.3 is three, and the second gear 11.4 is two, but the protection scope of the present invention is not limited to this number.
In order to ensure the smooth meshing of each first power shaft 11.1, each second power shaft 11.2 and each gear, the utility model also selects a bearing to be arranged between the outer side of the first power shaft 11.1 and the inner side of the second power shaft 11.2; bearings are also arranged between each gear and the gear shaft thereof, each bearing comprises a rolling bearing but is not limited to a rolling bearing, and the connection mode between each bearing and each shaft is a detachable connection mode such as key connection and the like or a non-detachable fixed connection and the like.
Meanwhile, each motor and each speed changer are fixed inside the shell through the support frames connected with each other.
Therefore, the utility model discloses a ventilation blower has compromise big amount of wind and overall arrangement compactness, possesses practical application and worth.
The utility model also discloses a ventilation system, this ventilation system has adopted the utility model relates to a ventilation blower. The ventilation system has large air volume and high air pressure, and can meet the actual requirement on high air volume. Therefore, the method is suitable for related fields such as underground local ventilation of mines or tunnel ventilation.
The above examples are merely preferred examples and are not intended to limit the embodiments of the present invention. In addition to the above embodiments, the present invention has other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, the meaning of "more than one" includes 1.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. The utility model provides a three-level counter-rotating axial-flow fan of single power drive, it includes casing (1), locate air inlet cylinder (4), play dryer (5) at casing (1) both ends and be located inside power supply (8) of casing (1), its characterized in that, both ends respectively set up power take off end one (8b-1) and power take off end two (8b-2) about power supply (8), power take off end one (8b-1) are connected axis of rotation (9), be equipped with first impeller (12) on axis of rotation (9), power take off end two (8b-2) are connected shaft coupling (10) one end, shaft coupling (10) other end connection derailleur (11), be equipped with first power shaft (11.1) on derailleur (11), the cover is located first power shaft (11.1) outlying second power shaft (11.2), the first power shaft (11.1) is connected with a second impeller (14), and the second power shaft (11.2) is connected with a third impeller (13).
2. A single power driven three-stage counter-rotating axial fan according to claim 1, wherein the second impeller (14) and the third impeller (13) are located on the same side of the transmission (11) and on a different side of the power source (8) than the first impeller (12).
3. A single power driven three stage counter rotating axial flow ventilator according to claim 2 wherein the first impeller (12) is directed against the inlet funnel (4) and the second and third impellers (14, 13) are located adjacent the outlet funnel (5).
4. A single power driven three stage counter rotating axial flow fan according to claim 1 or 2 or 3 wherein the gearbox (11) is further provided with n gears one (11.3) and (n ± 1) gear two (11.4) between the first power shaft (11.1) and the second power shaft (11.2), n being a positive integer greater than 1, and the power input (11a) of the gearbox (11) is connected to the first power shaft (11.1).
5. A single power driven three stage contra-rotating axial flow fan according to claim 4 wherein a first gear wheel one (11.3a) is fixed to the first power shaft (11.1), an (n ± 1) th gear wheel two (11.4a) is fixed to the second power shaft (11.2), an nth gear wheel one (11.3b) and a first gear wheel two (11.4b) are fixed to the same shaft, gear teeth of the gear wheels one (11.3) are in mesh with each other, and gear teeth of the gear wheels two (11.4) are in mesh with each other.
6. A single power driven three stage contra-rotating axial flow fan according to claim 5 wherein the first gear (11.3) and the second gear (11.4) are cylindrical gears.
7. A single power driven three stage counter rotating axial fan according to claim 1 or 2 or 3 or 5 or 6 wherein a bearing is provided between the outside of the first power shaft (11.1) and the inside of the second power shaft (11.2).
8. A single power driven three stage counter rotating axial fan according to claim 1 or 2 or 3 or 5 or 6, characterized in that the rotating shaft (9) is keyed with a first impeller (12), the first power shaft (11.1) is keyed with a second impeller (14), the second power shaft (11.2) is keyed with a third impeller (13).
9. A single power driven three stage contra-rotating axial flow fan according to claim 1 or 2 or 3 or 5 or 6 wherein the power source (8) is an electric motor, the electric motor is a single speed motor or a multi-speed motor and when it is a single speed motor, a variable frequency speed control means is added.
10. A ventilation system characterised in that it includes the use of a ventilator as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022655148.2U CN215058283U (en) | 2020-11-16 | 2020-11-16 | Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022655148.2U CN215058283U (en) | 2020-11-16 | 2020-11-16 | Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system |
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| CN215058283U true CN215058283U (en) | 2021-12-07 |
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| CN202022655148.2U Active CN215058283U (en) | 2020-11-16 | 2020-11-16 | Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117072469A (en) * | 2023-09-05 | 2023-11-17 | 苏州顶裕节能设备有限公司 | Centrifugal ventilator with oil bath type connecting bearing and method |
-
2020
- 2020-11-16 CN CN202022655148.2U patent/CN215058283U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117072469A (en) * | 2023-09-05 | 2023-11-17 | 苏州顶裕节能设备有限公司 | Centrifugal ventilator with oil bath type connecting bearing and method |
| CN117072469B (en) * | 2023-09-05 | 2024-03-12 | 苏州顶裕节能设备有限公司 | Centrifugal ventilator with oil bath type connecting bearing and method |
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Effective date of registration: 20240611 Address after: 810, 8th Floor, Building 10, Courtyard 1, Tianxing Street, Fangshan District, Beijing, 102400 Patentee after: Beijing Zhichanhui Technology Co.,Ltd. Country or region after: China Address before: 432000 No. 272 traffic Avenue, Hubei, Xiaogan Patentee before: HUBEI ENGINEERING University Country or region before: China |
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Effective date of registration: 20250213 Address after: 071000 5th floor, No. 569, Fengfan Road, Baoding City, Hebei Province Patentee after: Hebei mezawa mechanical and electrical equipment installation engineering Co.,Ltd. Country or region after: China Address before: 810, 8th Floor, Building 10, Courtyard 1, Tianxing Street, Fangshan District, Beijing, 102400 Patentee before: Beijing Zhichanhui Technology Co.,Ltd. Country or region before: China |