WO2022062076A1 - Ventilateur à écoulement axial à faible perte - Google Patents

Ventilateur à écoulement axial à faible perte Download PDF

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Publication number
WO2022062076A1
WO2022062076A1 PCT/CN2020/126008 CN2020126008W WO2022062076A1 WO 2022062076 A1 WO2022062076 A1 WO 2022062076A1 CN 2020126008 W CN2020126008 W CN 2020126008W WO 2022062076 A1 WO2022062076 A1 WO 2022062076A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
support shaft
motor
bearing
axial flow
Prior art date
Application number
PCT/CN2020/126008
Other languages
English (en)
Chinese (zh)
Inventor
梁忠义
Original Assignee
台州市杰龙风机厂
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 台州市杰龙风机厂 filed Critical 台州市杰龙风机厂
Publication of WO2022062076A1 publication Critical patent/WO2022062076A1/fr

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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
    • F04D19/002—Axial flow 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

Definitions

  • the invention relates to the technical field of fans, in particular to a low-loss axial flow fan.
  • Axial flow fans are very widely used, that is, the airflow in the same direction as the axis of the fan blades, such as electric fans, air conditioner outdoor fans are axial flow fans. It is called "axial flow” because the gas flows parallel to the fan axis.
  • Axial flow fans are usually used in applications with high flow requirements and low pressure requirements. Axial fans fix the position and move the air.
  • Axial flow fans are mainly composed of impeller, motor and casing. The structure is simple but the data requirements are very high. The impeller of the existing axial flow fan is generally directly fixed on the motor shaft of the motor.
  • the motor shaft of the motor provides the torque of the impeller rotation and at the same time is subject to the excess directional load of the impeller on the motor shaft, such as
  • the weight of the impeller and the centrifugal force of the impeller greatly increase the load of the motor and reduce the practical life of the motor.
  • the purpose of the present invention is to overcome the deficiencies of the prior art and provide a low-loss axial flow fan, which is provided with an impeller support shaft hinged with the casing between the impeller and the motor, and receives the load in the excess direction of the impeller through the impeller support shaft. Reduce the load of the motor, thereby effectively increasing the loss of the motor and increasing the useful output power of the motor.
  • a low-loss axial fan comprising a casing, an impeller, an impeller support shaft and a motor are arranged in the casing, the impeller is fixedly connected with one end of the impeller support shaft, and the other end of the impeller support shaft is connected with a motor shaft of the motor
  • the motor is fixed in the casing through the motor bracket, the impeller supporting shaft is hinged on the supporting frame, and the supporting frame is fixed on the inner wall of the casing.
  • the middle part of the impeller is formed with a spline blind hole with a rear side opening, and the bottom surface of the spline blind hole is formed with a bolt step through hole; the front end of the impeller support shaft is formed with a spline shaft, and the front end of the spline shaft is formed with a spline shaft.
  • a plurality of threaded holes are arranged coaxially with the bolt stepped through holes; locking screws are sleeved in the bolt stepped through holes, and the locking screws are screwed into the threaded holes.
  • the support frame includes a support shaft sleeve, and the outer wall of the support shaft sleeve is fixedly connected with the inner wall of the casing through a plurality of support arms;
  • the support sleeve is formed with a bearing step hole with a large rear and a small front; the impeller support shaft is hinged in the bearing step hole through the bearing.
  • the two bearings are arranged in front and back.
  • the outer ring of the front bearing is pressed against the stepped surface of the bearing step hole, and the outer ring of the rear bearing is pressed against the first thrust bearing.
  • the first thrust The rear side of the bearing is pressed against the rear end convex ring of the impeller support shaft; a second thrust bearing is clamped between the front end of the support sleeve and the impeller.
  • a ferrule is clamped between the outer rings between the two bearings.
  • the second thrust bearing is inserted into the collar, and the collar is inserted into and fixed on the impeller support shaft.
  • the rear end of the impeller support shaft is formed with a spline hole; the end of the motor shaft of the motor is formed with a spline segment matched with the flower hole.
  • An annular protrusion is formed on the thrust piece on the front side of the first thrust bearing, and the annular protrusion is pressed against the end surface of the outer ring of the rear side bearing.
  • the outstanding effect of the present invention is: compared with the prior art, an impeller support shaft hinged with the casing is arranged between the impeller and the motor, and the load of the motor is reduced by the impeller support shaft receiving the load in the excess direction of the impeller, thereby effectively improving the The loss of the motor increases the useful output power of the motor.
  • Fig. 1 is the structural representation of the present invention
  • Fig. 2 is a partial enlarged view of Fig. 1 about A;
  • Figure 3 is a rear view of the present invention.
  • a low-loss axial flow fan includes a casing 1, and an impeller 2, an impeller support shaft 3 and a motor 4 are arranged in the casing 1, and the impeller 2 is supported by the impeller.
  • One end of the shaft 3 is fixedly connected, and the other end of the impeller support shaft 3 is connected with the motor shaft of the motor 4; the motor 4 is fixed in the casing 1 through the motor bracket 5, and the impeller support shaft 3 is hinged on the support frame 6,
  • the support frame 6 is fixed on the inner wall of the casing 1 .
  • a spline blind hole 21 with a rear opening is formed in the middle of the impeller 2, and a bolt stepped through hole 22 is formed on the bottom surface of the spline blind hole 21; the front end of the impeller support shaft 3 is formed with a flower.
  • the front end of the key shaft 31 and the spline shaft 31 is formed with a plurality of threaded holes 32 coaxially arranged with the bolt step through hole 22; the bolt step through hole 22 is sleeved with a locking screw 7, and the locking screw 7 is screwed on the bolt step through hole 22. inside the threaded hole 32.
  • the support frame 6 includes a support shaft sleeve 61, and the outer wall of the support shaft sleeve 61 is fixedly connected with the inner wall of the casing 1 through a plurality of support arms 62;
  • the support sleeve 61 is formed with a bearing stepped hole 611 with a large rear and a small front; the impeller support shaft 3 is hinged in the bearing stepped hole 611 through a bearing 63 .
  • the two bearings 63 are arranged in front and back, the outer ring of the front bearing 63 is pressed against the stepped surface of the bearing step hole 611, and the outer ring of the rear bearing 63 is pressed against the stepped surface of the bearing step hole 611.
  • the rear side of the first thrust bearing 64 is pressed against the rear end convex ring 33 of the impeller support shaft 3; a second thrust is clamped between the front end of the support sleeve 61 and the impeller 2 Bearing 65.
  • a ferrule 66 is sandwiched between the outer rings between the two bearings 63 .
  • the second thrust bearing 65 is inserted into the collar 67 , and the collar 67 is inserted into and fixed on the impeller support shaft 3 .
  • the rear end of the impeller support shaft 3 is formed with a spline hole 34 ; the end of the motor shaft of the motor 4 is formed with a spline section 41 that matches with the spline hole 34 .
  • annular protrusion 641 is formed on the thrust piece on the front side of the first thrust bearing 64 , and the annular protrusion 641 is pressed against the end surface of the outer ring of the rear side bearing 63 .
  • the motor drives the impeller support shaft 3 to rotate, and the impeller support shaft 3 drives the impeller 2 to rotate; the impeller support shaft 3 is hinged on the support frame 6 through two bearings 63, and the support frame bears the weight and rotation of the impeller support shaft 3 and the impeller.
  • the motor 4 only needs to provide the torque to drive the impeller support shaft 3 to rotate, thereby effectively reducing the load of the motor and reducing the energy loss of the motor.

Landscapes

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

Abstract

La présente invention concerne un ventilateur à écoulement axial à faible perte comprenant un logement, et une roue, un arbre de support de roue, et un moteur étant disposé à l'intérieur du logement, la roue étant raccordée à demeure à une extrémité de l'arbre de support de roue et l'autre extrémité de l'arbre de support de roue étant raccordée à un arbre de moteur du moteur ; le moteur est fixé à l'intérieur du logement au moyen d'un support de moteur, et l'arbre de support de roue est articulé sur un cadre de support, le cadre de support étant fixé sur la paroi interne du logement. Dans la présente invention, l'arbre de support de roue articulé sur le logement est agencé entre la roue et le moteur, et la charge du moteur est réduite au moyen de l'arbre de support de roue recevant la charge de la roue dans des directions en excès, ce qui permet d'améliorer efficacement la perte du moteur et d'augmenter la puissance de sortie utile du moteur.
PCT/CN2020/126008 2020-09-25 2020-11-03 Ventilateur à écoulement axial à faible perte WO2022062076A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011024050.5A CN112096627A (zh) 2020-09-25 2020-09-25 一种低损耗轴流式风机
CN202011024050.5 2020-09-25

Publications (1)

Publication Number Publication Date
WO2022062076A1 true WO2022062076A1 (fr) 2022-03-31

Family

ID=73756245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/126008 WO2022062076A1 (fr) 2020-09-25 2020-11-03 Ventilateur à écoulement axial à faible perte

Country Status (2)

Country Link
CN (1) CN112096627A (fr)
WO (1) WO2022062076A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6945758B1 (en) * 2002-03-08 2005-09-20 Emerson Electric Co. Drive support and cover assembly for tubeaxial fan
CN104110469A (zh) * 2014-06-15 2014-10-22 吴小杰 风冷式塑料挤出机内摆线减速箱
CN205207250U (zh) * 2015-12-14 2016-05-04 沈阳鼓风机通风设备有限责任公司 应用于高含尘场合的轴承安装结构
CN106168226A (zh) * 2016-08-31 2016-11-30 湖南天雁机械有限责任公司 驱动轴带储油腔的轴流式冷却风扇
CN205841290U (zh) * 2016-06-02 2016-12-28 共享铸钢有限公司 轴流风机机头旋转装置
CN109707645A (zh) * 2019-02-27 2019-05-03 平安电气股份有限公司 一种液压驱动的矿用轴流通风机
CN210715174U (zh) * 2019-10-21 2020-06-09 浙江惠创风机有限公司 高压排烟通风两用轴流风机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1173071A1 (ru) * 1983-12-28 1985-08-15 Ордена Трудового Красного Знамени Змиевская Грэс Им.Г.М.Кржижановского Опорный узел вала вентил тора
GB0309830D0 (en) * 2003-04-29 2003-06-04 Boc Group Plc A vacuum pump
CN102146936B (zh) * 2010-12-30 2012-07-04 上海阿波罗机械股份有限公司 一种用于核电站的化学添加剂混合泵
CN202520796U (zh) * 2012-04-19 2012-11-07 杭州嘉诚机械有限公司 一种推力轴承径向固定结构
CN203227835U (zh) * 2013-03-08 2013-10-09 常州金安轧辊制造有限公司 万用卡盘装置
CN111365263A (zh) * 2020-04-02 2020-07-03 中冷(无锡)工程机械设备有限公司 一种新型静噪型轴流鼓风机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6945758B1 (en) * 2002-03-08 2005-09-20 Emerson Electric Co. Drive support and cover assembly for tubeaxial fan
CN104110469A (zh) * 2014-06-15 2014-10-22 吴小杰 风冷式塑料挤出机内摆线减速箱
CN205207250U (zh) * 2015-12-14 2016-05-04 沈阳鼓风机通风设备有限责任公司 应用于高含尘场合的轴承安装结构
CN205841290U (zh) * 2016-06-02 2016-12-28 共享铸钢有限公司 轴流风机机头旋转装置
CN106168226A (zh) * 2016-08-31 2016-11-30 湖南天雁机械有限责任公司 驱动轴带储油腔的轴流式冷却风扇
CN109707645A (zh) * 2019-02-27 2019-05-03 平安电气股份有限公司 一种液压驱动的矿用轴流通风机
CN210715174U (zh) * 2019-10-21 2020-06-09 浙江惠创风机有限公司 高压排烟通风两用轴流风机

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