JP2821813B2 - Reversing axial fan - Google Patents
Reversing axial fanInfo
- Publication number
- JP2821813B2 JP2821813B2 JP2294132A JP29413290A JP2821813B2 JP 2821813 B2 JP2821813 B2 JP 2821813B2 JP 2294132 A JP2294132 A JP 2294132A JP 29413290 A JP29413290 A JP 29413290A JP 2821813 B2 JP2821813 B2 JP 2821813B2
- Authority
- JP
- Japan
- Prior art keywords
- bevel gear
- attached
- motor
- shaft
- large bevel
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、反転軸流ファンに関するものである。The present invention relates to a reversing axial fan.
これまでの反転軸流ファンは、図２に示すようなもの
であった。すなわち、第１電動機に一方向へ回転する第
１動翼車を取り付けたものと、第２電動機に反対方向へ
回転する第２動翼車を取り付けたものとを直列に配置し
たものである。このものは、いわゆるコントラファンと
呼ばれ、トンネル換気等のために広く用いられている。Conventional reversing axial fans have been as shown in FIG. That is, a motor in which a first rotor wheel rotating in one direction is attached to the first motor and a motor in which a second rotor wheel rotating in the opposite direction is attached to the second motor are arranged in series. This is called a so-called contra fan, and is widely used for tunnel ventilation and the like.
これまでの反転軸流ファンは、一般に静翼がいらず性
能もよいが、次のような欠点を持っていた。すなわち、
第１電動機に第１動翼車を取り付けたものと第２電動機
に第２動翼車を取り付けたものとを直線上に配置してい
たために、どうしても全長が長くなるうえ、重いものと
なってしまった。したがって、直線部分の長さを十分に
は確保できない場所での使用ができないだけでなく、取
り扱いも不便であった。Conventional reversing axial fans generally do not require vanes and have good performance, but have the following disadvantages. That is,
Since the first motor with the first rotor wheel attached and the second motor with the second rotor wheel attached are arranged in a straight line, the overall length becomes longer and becomes heavier. Oops. Therefore, not only cannot it be used in a place where the length of the straight portion cannot be sufficiently secured, but also handling is inconvenient.
本発明に係る反転軸流ファンは、全長が短く、しかも
軽量なものであって、次のようなものである。The inverted axial flow fan according to the present invention has a short overall length and is lightweight, and is as follows.
すなわち、電動機４の電動機軸５の先端付近外周に第
１動翼車６を取り付けて電動機４の前面位置において電
動機軸５の外周に大傘歯車７を取り付け、そして大傘歯
車７の外周位置において電動機４のケーシングに中継ケ
ーシング15を取り付けて中継ケーシング15から中心へ向
けて固定軸９を取り付け、固定軸９には軸受を介して小
傘歯車10を取り付けて小傘歯車10は大傘歯車７とかみ合
わせ、また中継ケーシング15には軸受箱16を取り付けて
軸受箱16と電動機軸５との間に中空回転軸18を設け、そ
して中空回転軸18と軸受箱16及び電動機軸５との間には
それぞれ軸受を設け、更に中空回転軸18の電動機４側端
面には大傘歯車12を設けて大傘歯車12は小傘歯車10とか
み合わせ、そして中空回転軸18の他端側外周に第２動翼
車11を取り付けた反転軸流ファンである。That is, the first moving wheel 6 is attached to the outer periphery of the motor shaft 5 near the tip of the motor shaft 5, the large bevel gear 7 is attached to the outer periphery of the motor shaft 5 at the front position of the motor 4, and The relay casing 15 is attached to the casing of the electric motor 4, a fixed shaft 9 is attached from the relay casing 15 toward the center, and a small bevel gear 10 is attached to the fixed shaft 9 via a bearing, and the small bevel gear 10 is a large bevel gear 7 In addition, a bearing housing 16 is attached to the relay casing 15, and a hollow rotary shaft 18 is provided between the bearing housing 16 and the motor shaft 5, and between the hollow rotary shaft 18 and the bearing housing 16 and the motor shaft 5. Are provided with bearings, respectively, and a large bevel gear 12 is provided on the end face of the hollow rotary shaft 18 on the electric motor 4 side. Reversing axial flow fan with rotor blade 11 It is.
電動機４のスイッチを入れると、電動機軸５と共に第
１動翼車６が回転を始める。電動機軸５が回転すると、
大傘歯車７も同時に回転し、大傘歯車７とかみ合ってい
る小傘歯車10を一定の増速比で増速させて回転させる。
小傘歯車10は、その増速比の逆数と等しい減速比で減速
させて中空回転軸18の大傘歯車12へ回転を伝える。その
結果、第２動翼車11は第１動翼車６とは等速でしかも逆
方向へ回転する。When the electric motor 4 is turned on, the first bucket wheel 6 starts rotating together with the electric motor shaft 5. When the motor shaft 5 rotates,
The large bevel gear 7 also rotates at the same time, and the small bevel gear 10 meshing with the large bevel gear 7 is rotated at a fixed speed increase ratio.
The small bevel gear 10 transmits the rotation to the large bevel gear 12 of the hollow rotary shaft 18 while reducing the speed at a reduction ratio equal to the reciprocal of the speed increase ratio. As a result, the second bucket 11 rotates at the same speed as the first bucket 6 and in the opposite direction.
本発明の１実施例を図面に基づいて説明する。１はケ
ーシングを示している。ケーシング１の前方にベルマウ
ス２を取り付けている。ケーシング１内の中央に支持翼
３を介して電動機４を取り付けている。電動機４の電動
機軸５はやや長いものとし、電動機軸５の先端付近外周
に外周方向へ向けて第１動翼車６を取り付けている。An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a casing. A bell mouth 2 is attached to the front of the casing 1. An electric motor 4 is attached to the center of the casing 1 via support wings 3. The motor shaft 5 of the electric motor 4 is made slightly longer, and a first rotor wheel 6 is attached to the outer periphery near the tip of the electric motor shaft 5 toward the outer peripheral direction.
電動機４の前面位置において電動機軸５に大傘歯車７
を取り付けている。そして、大傘歯車７の外周位置にお
いて、電動機４のケーシングに中継ケーシング15を取り
付け、中継ケーシング15から中心へ向けて固定軸９を取
り付けている。固定軸９には軸受を介して小傘歯車10を
取り付け、小傘歯車10を大傘歯車７とかみ合わせてい
る。A large bevel gear 7 is attached to the motor shaft 5 at the front position of the motor 4.
Is installed. At the outer peripheral position of the large bevel gear 7, the relay casing 15 is attached to the casing of the electric motor 4, and the fixed shaft 9 is attached from the relay casing 15 toward the center. A small bevel gear 10 is attached to the fixed shaft 9 via a bearing, and the small bevel gear 10 is engaged with the large bevel gear 7.
中継ケーシング15には軸受箱16を取り付け、軸受箱16
の先端に軸受カバー17を取り付けている。軸受箱16と電
動機軸５との間に中空回転軸18を設けているが、中空回
転軸18と軸受箱16及び電動機軸５との間にはそれぞれ軸
受を設けている。中空回転軸18の電動機４側端面には大
傘歯車12を設け、大傘歯車12は小傘歯車10とかみ合わせ
ている。そして、中空回転軸18の他端側外周には、第２
動翼車11を取り付けている。A bearing box 16 is attached to the relay casing 15, and the bearing box 16
The bearing cover 17 is attached to the tip of the. The hollow rotary shaft 18 is provided between the bearing housing 16 and the motor shaft 5, and a bearing is provided between the hollow rotary shaft 18, the bearing housing 16 and the motor shaft 5, respectively. A large bevel gear 12 is provided on the end face of the hollow rotary shaft 18 on the side of the electric motor 4, and the large bevel gear 12 meshes with the small bevel gear 10. The second outer periphery of the hollow rotary shaft 18 has a second
A bucket wheel 11 is attached.
電動機軸５が回転すると、第１動翼車６も回転する。
同時に、大傘歯車７、小傘歯車10、大傘歯車12及び中空
回転軸18を介し、第２動翼車11を等速で逆方向へ回転さ
せる。When the motor shaft 5 rotates, the first bucket wheel 6 also rotates.
At the same time, the second blade 11 is rotated in the opposite direction at a constant speed via the large bevel gear 7, the small bevel gear 10, the large bevel gear 12, and the hollow rotary shaft 18.
この実施例のものにおいては、大傘歯車７、小傘歯車
10及び大傘歯車12を中継ケーシング15等の内部に囲い込
んでいるので、潤滑剤が外部へ漏出することはない。In this embodiment, the large bevel gear 7, the small bevel gear
Since the bevel gear 10 and the large bevel gear 12 are enclosed inside the relay casing 15 and the like, the lubricant does not leak to the outside.
本発明に係る反転軸流ファンは、機能は従来の反転軸
流ファンと異ならないながら、従来型より全長がかなり
短くて、しかも軽量かつ簡便なものである。したがっ
て、直線部分を長くとれない場所でも使用できるし、取
り扱いにも便利である。The reversing axial flow fan according to the present invention has a function not different from that of the conventional reversing axial flow fan, but has a significantly shorter overall length than the conventional type, and is lightweight and simple. Therefore, it can be used even in a place where the straight portion cannot be long, and it is convenient for handling.
また、大傘歯車７、小傘歯車10及び大傘歯車12を中継
ケーシング15等の内部に囲い込んでいるので、潤滑剤が
外部へ漏出することはない。In addition, since the large bevel gear 7, the small bevel gear 10, and the large bevel gear 12 are enclosed inside the relay casing 15, etc., the lubricant does not leak to the outside.
図１は本発明の１実施例の要部を示す部分断面図、図２
は従来例を示す部分断面図である。 ４……電動機、５……電動機軸 ６……第１動翼車、７……大傘歯車 ９……固定軸、10……小傘歯車 11……第２動翼車、12……大傘歯車FIG. 1 is a partial sectional view showing a main part of one embodiment of the present invention, and FIG.
Is a partial cross-sectional view showing a conventional example. 4 ... electric motor, 5 ... electric motor shaft 6 ... first moving wheel, 7 ... large bevel gear 9 ... fixed shaft, 10 ... small bevel gear 11 ... second moving wheel, 12 ... large Bevel gear
Claims (1)
外周に第１動翼車（６）を取り付けて電動機（４）の前
面位置において電動機軸（５）の外周に大傘歯車（７）
を取り付け、そして大傘歯車（７）の外周位置において
電動機（４）のケーシングに中継ケーシング（15）を取
り付けて中継ケーシング（15）から中心へ向けて固定軸
（９）を取り付け、固定軸（９）には軸受を介して小傘
歯車（10）を取り付けて小傘歯車（10）は大傘歯車
（７）とかみ合わせ、また中継ケーシング（15）には軸
受箱（16）を取り付けて軸受箱（16）と電動機軸（５）
との間に中空回転軸（18）を設け、そして中空回転軸
（18）と軸受箱（16）及び電動機軸（５）との間にはそ
れぞれ軸受を設け、更に中空回転軸（18）の電動機
（４）側端面には大傘歯車（12）を設けて大傘歯車（1
2）は小傘歯車（10）とかみ合わせ、そして中空回転軸
（18）の他端側外周に第２動翼車（11）を取り付けた反
転軸流ファン。A first rotating bladed wheel (6) is mounted on the outer periphery of the motor shaft (5) near the tip of the motor shaft (5). (7)
And a relay casing (15) is mounted on the casing of the electric motor (4) at an outer peripheral position of the large bevel gear (7), and a fixed shaft (9) is mounted from the relay casing (15) toward the center. At 9), a small bevel gear (10) is attached via a bearing, the small bevel gear (10) meshes with the large bevel gear (7), and a bearing box (16) is attached to the relay casing (15). Box (16) and motor shaft (5)
A hollow rotary shaft (18) is provided between the hollow rotary shaft (18) and the bearing housing (16) and the motor shaft (5). A large bevel gear (12) is provided on the end face of the motor (4) to
2) A reversing axial flow fan that meshes with a small bevel gear (10), and has a second rotating blade wheel (11) attached to the outer periphery on the other end side of the hollow rotary shaft (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2294132A JP2821813B2 (en) | 1990-10-31 | 1990-10-31 | Reversing axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2294132A JP2821813B2 (en) | 1990-10-31 | 1990-10-31 | Reversing axial fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04166698A JPH04166698A (en) | 1992-06-12 |
| JP2821813B2 true JP2821813B2 (en) | 1998-11-05 |
Family
ID=17803717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2294132A Expired - Fee Related JP2821813B2 (en) | 1990-10-31 | 1990-10-31 | Reversing axial fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2821813B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04323414A (en) * | 1991-04-20 | 1992-11-12 | Kobe Steel Ltd | Draw-up device for time series data rule |
| CN103527500B (en) * | 2013-10-17 | 2018-09-07 | 广州市设计院 | A kind of multi fan combination fire prevention box type fan |
| CN104989657B (en) * | 2015-06-12 | 2017-05-17 | 太原理工大学 | Contra-rotating impeller ventilation equipment driven by long shaft |
| CN108678959B (en) * | 2018-04-16 | 2022-05-20 | 江苏大学镇江流体工程装备技术研究院 | Single-shaft driven three-stage counter-rotating axial flow pump |
| CN108730199A (en) * | 2018-04-16 | 2018-11-02 | 江苏大学镇江流体工程装备技术研究院 | A kind of single motor driving pumps axial flow rotary |
| CN108644126A (en) * | 2018-04-16 | 2018-10-12 | 江苏大学镇江流体工程装备技术研究院 | A kind of shaft-driven guide-vane of list is to revolving mixed-flow pump |
| CN108750061A (en) * | 2018-04-16 | 2018-11-06 | 江苏大学镇江流体工程装备技术研究院 | A kind of shaft-driven axis stream of list is to revolving water jet propulsion pump |
| WO2020077916A1 (en) * | 2018-10-15 | 2020-04-23 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
| CN112855563B (en) * | 2021-01-19 | 2022-05-20 | 江苏大学 | Novel counter-rotating pump structure and working mode thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6131696A (en) * | 1984-07-23 | 1986-02-14 | Matsushita Electric Works Ltd | Fan |
-
1990
- 1990-10-31 JP JP2294132A patent/JP2821813B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04166698A (en) | 1992-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |