WO2013078826A1 - 一种引风机蜗壳密封结构 - Google Patents

一种引风机蜗壳密封结构 Download PDF

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Publication number
WO2013078826A1
WO2013078826A1 PCT/CN2012/074793 CN2012074793W WO2013078826A1 WO 2013078826 A1 WO2013078826 A1 WO 2013078826A1 CN 2012074793 W CN2012074793 W CN 2012074793W WO 2013078826 A1 WO2013078826 A1 WO 2013078826A1
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WO
WIPO (PCT)
Prior art keywords
volute
hole
sealing
annular
wind wheel
Prior art date
Application number
PCT/CN2012/074793
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English (en)
French (fr)
Inventor
王雄程
雷威
Original Assignee
中山大洋电机股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Priority to CA2842143A priority Critical patent/CA2842143A1/en
Priority to MX2013012376A priority patent/MX2013012376A/es
Priority to US13/845,068 priority patent/US9528528B2/en
Publication of WO2013078826A1 publication Critical patent/WO2013078826A1/zh

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings

Definitions

  • the utility model relates to a snail shell sealing structure of an induced draft fan.
  • the conventional induced draft fan structure includes a motor, a volute and a wind wheel.
  • a through hole is arranged on the top of the volute.
  • the rotating shaft of the motor passes through the through hole and is connected to the wind wheel.
  • At the position of the through hole there is a gap between the rotating shaft and the volute, and dust The foreign matter easily enters the inside of the volute along the gap, affecting the normal operation of the wind wheel.
  • the utility model aims to provide a snail sealing structure of an induced draft fan, which has a simple structure, convenient installation and good sealing effect, and prevents foreign matter such as dust from entering the volute and ensuring normal operation of the wind wheel.
  • the utility model relates to a volute casing sealing structure, comprising a motor, a volute and a wind wheel, wherein the volute is provided with an air inlet and an air outlet, a wind wheel is arranged in the volute, a through hole is arranged on the top of the volute, and a rotating shaft of the motor passes through the through hole
  • the wind wheel is connected, and a sealing cymbal is mounted on the position of the through hole and the volute.
  • the outer side of the sealing cymbal is provided with an annular groove, the annular groove is fitted with the volute, and a central hole is opened in the middle of the sealing cymbal.
  • An annular edge protrudes in the middle of the wall, and the rotating shaft is inserted inside the central hole and abuts against the annular edge.
  • the inner wall surface of the through hole protrudes from the annular boss, and the groove of the sealing jaw is embedded in the annular boss.
  • the outer side of the sealing jaw protrudes from the hook, and the hook is caught between the ribs on the top of the volute.
  • the outer side of the sealing jaw protrudes from the convex lug, and the lug is embedded in the notch formed by the surrounding edge.
  • the sealing material described above is made of rubber.
  • the utility model has the beneficial effects compared with the prior art: 1) the utility model has a sealing cymbal mounted on the position of the through hole and the volute, and the outer side of the sealing cymbal is provided with an annular groove, the annular groove and the worm The shell phase is fitted, a central hole is formed in the middle of the sealing cymbal, and an annular side is protruded in the middle of the wall surface of the central hole. The rotating shaft is inserted inside the central hole and abuts against the annular edge.
  • the structure is simple, the installation is convenient, the sealing effect is good, and the prevention is prevented.
  • Figure 1 is a perspective view of the present invention.
  • Figure 2 is a cross-sectional view showing the first embodiment of the present invention.
  • Figure 3 is a partial enlarged view of A-A of Figure 2.
  • FIG. 4 is a perspective view of a sealing cymbal according to an embodiment of the present invention.
  • Figure 5 is a cross-sectional view showing the second embodiment of the present invention.
  • Figure 6 is a partial enlarged view of B-B of Figure 5.
  • Figure 7 is a cross-sectional view taken along line C-C of Figure 6.
  • Figure 8 is a perspective view of the sealing cymbal of the second embodiment of the present invention.
  • Embodiment 1 as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the utility model relates to an air blower volute sealing structure, which comprises a motor 1, a volute 2 and a wind wheel 23, and the volute 2 is provided with The tuyere 21 and the air outlet 22 are provided with a wind wheel 23 in the volute 2, and a through hole 24 is arranged on the top of the volute 2, and the rotating shaft 11 of the motor 1 passes through the through hole 24 and is connected to the wind wheel 23 at the position of the through hole 24, the worm
  • the casing 2 is provided with a sealing jaw 3, and the outer side of the sealing jaw 3 is provided with an annular groove 31.
  • the annular groove 31 is fitted with the volute 2, and a central hole 32 is defined in the middle of the sealing jaw 3, in the middle of the wall of the central hole 32.
  • An annular edge 33 is protruded, and the rotating shaft 11 is inserted into the center hole 32 and abuts against the annular side 33; the inner wall surface of the through hole 24 protrudes from the annular boss 25a, and the groove 31 of the sealing jaw 3 is embedded in the annular boss 25a.
  • the outer side of the sealing jaw 3 protrudes from the hook 34, and the hook 34 is caught between the upper ribs 27 of the volute 2; the sealing material 3 is made of rubber.
  • Embodiment 2 As shown in FIG. 1 , FIG. 5 , FIG. 6 , FIG. 7 and FIG. 8 , the utility model relates to an air blower volute sealing structure, comprising a motor 1 , a volute 2 and a wind wheel 23 , and a volute 2 is provided with an air inlet 21 and an air outlet 22, a wind wheel 23 is arranged in the volute 2, and a through hole 24 is arranged on the top of the volute 2, and the rotating shaft 11 of the motor 1 passes through the through hole 24 and is connected to the wind wheel 23, in the through hole a sealing cymbal 3 is mounted on the volute 2, and an annular groove 31 is disposed outside the sealing cymbal 3, and the annular groove 31 is fitted with the volute 2, A central hole 32 is defined in the middle of the sealing cymbal 3, and an annular edge 33 is protruded in the middle of the wall surface of the central hole 32.
  • the rotating shaft 11 is inserted into the central hole 32 and abuts against the annular side 33; at the edge of the through hole 24, at the top of the volute 2
  • An annular edge 26 is protruded outwardly, and an annular projection 25b protrudes from the inner side wall surface of the peripheral edge 26.
  • the groove 31 of the sealing jaw 3 is embedded in the annular projection 25b.
  • the outer side of the sealing jaw 3 protrudes from the lug 35, and the lug 35 is embedded.
  • the notch 260 is formed in the rim 26; the sealing ⁇ 3 is made of rubber.
  • the utility model is provided with a sealing cymbal 3 at the position of the through hole 24 and the volute 2.
  • the outer side of the sealing cymbal 3 is provided with an annular groove 31, and the annular groove 31 is fitted with the volute 2, and the sealing ⁇ 3 is intermediate
  • a central hole 32 is defined, and an annular edge 33 is protruded in the middle of the wall surface of the central hole 32.
  • the rotating shaft 11 is inserted into the central hole 32 and abuts against the annular edge 33 to seal the gap between the rotating shaft and the volute to prevent foreign matter such as dust from entering. Inside the volute, ensure that the wind wheel works normally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种引风机蜗壳密封结构，包括电机（1）、蜗壳（2）和风轮（23），蜗壳（2）上设有进风口（21）和出风口（22），蜗壳（2）内设置风轮（23），蜗壳（2）顶部上设置通孔（24），电机（1）的转轴（11）穿过通孔（24）并连接风轮（23），在通孔（24）的位置、蜗壳（2）上安装有密封圈（3），所述的密封圈（3）外侧设有环型凹槽（31），环形凹槽（31）与蜗壳（2）相嵌合，密封圈（3）中间开设中心孔（32），在中心孔（32）壁面中间凸出一环形边（33），转轴（11）穿在中心孔（32）里面并与环形边（33）仅靠在一起。该密封结构简单、安装方便、密封效果好，防止灰尘等异物进入蜗壳内部，保证风轮正常工作。

Description

一种引风机蜗壳密封结构
技术领域： 本实用新型涉及一种引风机蜗壳密封结构。
背景技术：
传统的引风机结构， 包括电机、 蜗壳和风轮， 蜗壳顶部上设置通孔， 电机 的转轴穿过通孔并连接风轮， 在通孔位置处， 转轴与蜗壳之间存在缝隙， 灰尘 等异物容易沿缝隙进入蜗壳内部， 影响风轮正常工作。
发明内容：
本实用新型的目的是提供一种引风机蜗壳密封结构， 它结构筒单， 安装方 便， 密封效果好， 防止灰尘等异物进入蜗壳内部， 保证风轮正常工作。
本实用新型的目的是通过以下的技术方案予以实现的。
一种引风机蜗壳密封结构， 包括电机、蜗壳和风轮， 蜗壳上设有进风口和 出风口， 蜗壳内设置风轮， 蜗壳顶部上设置通孔， 电机的转轴穿过通孔并连接 风轮，在通孔的位置、蜗壳上安装有密封圏，所述的密封圏外侧设有环形 槽， 环形凹槽与蜗壳相嵌合， 密封圏中间开设中心孔，在中心孔壁面中间凸出一环 形边， 转轴穿在中心孔里面并与环形边紧靠在一起。
上述所述的通孔内壁面凸出环形凸台， 密封圏的凹槽嵌入环形凸台里。 上述所述的密封圏外侧凸出挂钩， 挂钩卡在蜗壳的顶部上筋条间。
上述所述的在通孔边缘、蜗壳顶部向外凸出围边， 围边的内侧壁面上凸出 环形凸块， 密封圏的凹槽嵌入环形凸块里。
上述所述的密封圏外侧凸出凸耳， 凸耳嵌入围边开设的缺口里。
上述所述的密封圏的制成材料是橡胶。
本实用新型与现有技术相比的有益效果是： 1 )本实用新型在通孔的位置、 蜗壳上安装有密封圏， 所述的密封圏外侧设有环形凹槽， 环形凹槽与蜗壳相嵌 合， 密封圏中间开设中心孔， 在中心孔壁面中间凸出一环形边， 转轴穿在中心 孔里面并与环形边紧靠在一起， 结构筒单， 安装方便， 密封效果好， 防止灰尘 等异物进入蜗壳内部， 保证风轮正常工作； 2 ) 密封圏外侧凸出挂钩， 挂钩卡 在蜗壳的顶部上筋条间， 结构设计合理， 紧凑； 3)密封圏的制成材料是橡胶， 成本低廉。
附图说明：
图 1 是本实用新型的立体图。
图 2 是本实用新型实施例一的剖视图。
图 3 是图 2的 A-A局部放大图。
图 4 是本实用新型实施例一密封圏立体图。
图 5 是本实用新型实施例二的剖视图。
图 6 是图 5的 B-B局部放大图。
图 7 是图 6的 C-C部分剖视图。
图 8 是本实用新型实施例二密封圏立体图。
具体实施方式： 下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一， 如图 1、 图 2、 图 3和图 4所示， 本实用新型是一种引风机蜗 壳密封结构， 包括电机 1、 蜗壳 2和风轮 23, 蜗壳 2上设有进风口 21和出风 口 22, 蜗壳 2内设置风轮 23, 蜗壳 2顶部上设置通孔 24, 电机 1的转轴 11 穿过通孔 24并连接风轮 23, 在通孔 24的位置、 蜗壳 2上安装有密封圏 3, 所 述的密封圏 3外侧设有环形凹槽 31, 环形凹槽 31与蜗壳 2相嵌合， 密封圏 3 中间开设中心孔 32, 在中心孔 32壁面中间凸出一环形边 33, 转轴 11穿在中 心孔 32里面并与环形边 33紧靠在一起； 通孔 24内壁面凸出环形凸台 25a, 密封圏 3的凹槽 31嵌入环形凸台 25a里； 密封圏 3外侧凸出挂钩 34,挂钩 34 卡在蜗壳 2的顶部上筋条 27间； 密封圏 3的制成材料是橡胶。
实施例二， 如图 1、 图 5、 图 6、 图 7和图 8所示所示， 本实用新型是一 种引风机蜗壳密封结构， 包括电机 1、 蜗壳 2和风轮 23, 蜗壳 2上设有进风口 21和出风口 22, 蜗壳 2 内设置风轮 23, 蜗壳 2顶部上设置通孔 24, 电机 1 的转轴 11穿过通孔 24并连接风轮 23, 在通孔 24的位置、 蜗壳 2上安装有密 封圏 3, 所述的密封圏 3外侧设有环形凹槽 31, 环形凹槽 31与蜗壳 2相嵌合， 密封圏 3 中间开设中心孔 32, 在中心孔 32壁面中间凸出一环形边 33, 转轴 11穿在中心孔 32里面并与环形边 33紧靠在一起； 在通孔 24边缘、 蜗壳 2顶 部向外凸出围边 26, 围边 26的内侧壁面上凸出环形凸块 25b, 密封圏 3的凹 槽 31嵌入环形凸块 25b里； 密封圏 3外侧凸出凸耳 35, 凸耳 35嵌入围边 26 开设的缺口 260里； 密封圏 3的制成材料是橡胶。
本实用新型在通孔 24的位置、蜗壳 2上安装有密封圏 3, 所述的密封圏 3 外侧设有环形凹槽 31, 环形凹槽 31与蜗壳 2相嵌合， 密封圏 3中间开设中心 孔 32,在中心孔 32壁面中间凸出一环形边 33,转轴 11穿在中心孔 32里面并 与环形边 33紧靠在一起， 密封转轴与蜗壳之间缝隙， 防止灰尘等异物进入蜗 壳内部， 保证风轮正常工作。

Claims

权利要求
1. 一种引风机蜗壳密封结构， 包括电机（1)、 蜗壳 （2)和风轮（23), 蜗壳
(2)上设有进风口 （ )和出风口 (22), 蜗壳 （2) 内设置风轮（23), 蜗壳 （ 2 )顶部上设置通孔（ 24 ), 电机（ 1 ) 的转轴（ 11 ) 穿过通孔（ 24 ) 并连接风轮（23), 其特征在于： 在通孔（24) 的位置、 蜗壳 （2)上安装 有密封圏（ 3 ),所述的密封圏（ 3 )外侧设有环形凹槽（ 31 ),环形凹槽（ 31 ) 与蜗壳 （2)相嵌合， 密封圏 （ 3) 中间开设中心孔（ 32), 在中心孔（32) 壁面中间凸出一环形边（ 33), 转轴（11 )穿在中心孔（ 32)里面并与环形 边（33) 紧靠在一起。
2. 根据权利要求 1所述的一种引风机蜗壳密封结构， 其特征在于： 通孔（24) 内壁面凸出环形凸台（25a), 密封圏（ 3)的凹槽（ 31 )嵌入环形凸台（ 25a) 里。
3. 根据权利要求 2所述的一种引风机蜗壳密封结构，其特征在于：密封圏（ 3 ) 外侧凸出挂钩（ 34 ), 挂钩（ 34 )卡在蜗壳 （ 2 ) 的顶部上筋条（ 27 ) 间。
4. 根据权利要求 1所述的一种引风机蜗壳密封结构，其特征在于：在通孔（ 24 ) 边缘、 蜗壳 （2)顶部向外凸出围边 (26), 围边 6) 的内侧壁面上凸出 环形凸块（25b), 密封圏 （3) 的凹槽（31 )嵌入环形凸块 5b)里。
5. 根据权利要求 4所述的一种引风机蜗壳密封结构，其特征在于：密封圏（ 3 ) 外侧凸出凸耳（35 ), 凸耳（35)嵌入围边 6)开设的缺口 （ 260 )里。
6. 根据权利要求 1或 2或 3或 4所述的一种引风机蜗壳密封结构， 其特征在 于： 密封圏 （3) 的制成材料是橡胶。
PCT/CN2012/074793 2011-12-03 2012-04-27 一种引风机蜗壳密封结构 WO2013078826A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2842143A CA2842143A1 (en) 2011-12-03 2012-04-27 Draught fan volute seal structure
MX2013012376A MX2013012376A (es) 2011-12-03 2012-04-27 Estructura de sello de voluta para ventilador de succion.
US13/845,068 US9528528B2 (en) 2011-12-03 2013-03-17 Induced draught fan

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201120497688.0 2011-12-03
CN2011204976880U CN202391815U (zh) 2011-12-03 2011-12-03 一种引风机蜗壳密封结构

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/845,068 Continuation-In-Part US9528528B2 (en) 2011-12-03 2013-03-17 Induced draught fan

Publications (1)

Publication Number Publication Date
WO2013078826A1 true WO2013078826A1 (zh) 2013-06-06

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US (1) US9528528B2 (zh)
CN (1) CN202391815U (zh)
CA (1) CA2842143A1 (zh)
MX (1) MX2013012376A (zh)
WO (1) WO2013078826A1 (zh)

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CN203384069U (zh) * 2013-07-17 2014-01-08 中山大洋电机股份有限公司 一种引风机
US10968917B2 (en) * 2014-10-27 2021-04-06 Zhongshan Broad-Ocean Motor Manufacturing Co., Ltd. Blower comprising a pressure measuring connector
CN104882995A (zh) * 2015-06-17 2015-09-02 东莞市金霸电机制造有限公司 一种双轴电机
US10590941B2 (en) * 2017-05-24 2020-03-17 Regal Beloit America, Inc. Static pressure tap
USD906510S1 (en) * 2018-08-03 2020-12-29 Ebm-Papst Mulfingen Gmbh & Co. Kg Fan with a cooling element
JP7374190B2 (ja) * 2018-12-27 2023-11-06 アトラス・コプコ・エアパワー・ナームロゼ・ベンノートシャープ インペラ、およびこのようなインペラを備えたターボ圧縮機、ならびにこのようなインペラを製作するための方法
CN109695586A (zh) * 2019-02-20 2019-04-30 苏州众志新环冷却设备有限公司 用于海上风电的新型密封风扇
CN109915417A (zh) * 2019-05-06 2019-06-21 中山大洋电机股份有限公司 引风机的蜗壳组件及引风机
USD1004627S1 (en) * 2021-12-17 2023-11-14 Lyushu Deng Inflatable blower
CN117663253A (zh) * 2022-08-23 2024-03-08 广东美的暖通设备有限公司 风机及空调

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MX2013012376A (es) 2014-02-03

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