CN101917102A - Three-phase asynchronous motor hollow shaft with air deflectors - Google Patents

Three-phase asynchronous motor hollow shaft with air deflectors Download PDF

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Publication number
CN101917102A
CN101917102A CN 201010230422 CN201010230422A CN101917102A CN 101917102 A CN101917102 A CN 101917102A CN 201010230422 CN201010230422 CN 201010230422 CN 201010230422 A CN201010230422 A CN 201010230422A CN 101917102 A CN101917102 A CN 101917102A
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CN
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Prior art keywords
shaft
phase asynchronous
asynchronous motor
air deflectors
hollow shaft
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CN 201010230422
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Chinese (zh)
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CN101917102B (en )
Inventor
尤建东
惠俭新
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无锡锡山安达防爆电气设备有限公司
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Abstract

The invention relates to a three-phase asynchronous motor hollow shaft with air deflectors. According to the technical scheme provided by the invention, the hollow shaft comprises a revolving shaft, wherein shaft bars are arranged on the middle surface of the revolving shaft and extend outward along the radial direction of the revolving shaft and are symmetrically distributed uniformly; the shaft bars are horizontally parallel with the axis of the revolving shaft; the air deflectors are arranged between the adjacent shaft bars; and ventilating cavities are formed between the air deflectors and the revolving shaft. The air deflectors are arranged at the two ends of the adjacent shaft bars and the ventilating cavities are formed between the air deflectors and the revolving shaft, thus the hollow shaft reduces the area through which airflow flows, increases the wind pressure of the airflow, speeds up the flowing-through wind, improves the radiating effect, prolongs the service life of the three-phase asynchronous motor, lowers the use cost and is simple in structure, safe and reliable.

Description

具有导风板的三相异步电动机空心轴 Phase asynchronous motor having a hollow shaft of the deflector

技术领域 FIELD

[0001] 本发明涉及一种三相异步电动机空心轴,尤其是一种具有导风板的三相异步电动机空心轴。 [0001] The present invention relates to a hollow shaft three-phase asynchronous motors, in particular three-phase asynchronous motor having a hollow shaft of the deflector.

背景技术 Background technique

[0002] 在大中型电机的设计中,由于转子内径的增大,往往要采取空心轴的结构。 [0002] In the medium-sized motor design, since the increase in the inner diameter of the rotor, it tends to take the structure of the hollow shaft. 当电机转动时,内风扇产生的气流在转子内表面的轴筋之间穿过而形成循环,从而把热量传导到机座表面。 When the motor, the airflow generated by the fan between the inner surface of the rotor shaft passes through the rib and form a cycle, thereby conducting heat to the base surface. 但由于一般空心轴可以导风的面积较大,致使风速流通比较缓慢,分压较低,散热效果不明显。 However, because generally the larger the hollow guide shaft may wind area, resulting in relatively slow flow of the wind speed, the lower partial pressure, the heat dissipation effect is not obvious.

发明内容 SUMMARY

[0003] 本发明的目的是克服现有技术中存在的不足,提供一种具有导风板的三相异步电动机空心轴,其结构简单,散热效果好,降低使用成本,延长三相异步电动机的使用寿命。 [0003] The object of the present invention is to overcome the disadvantages present in the prior art, three-phase asynchronous motor having a hollow shaft of the air guide plate, a simple structure, good cooling effect, reduce the cost, to extend the three-phase asynchronous motor life.

[0004] 按照本发明提供的技术方案,所述具有导风板的三相异步电动机空心轴,包括转轴,在所述转轴的中部表面设置沿转轴的径向向外延伸均勻对称分布的轴筋,所述轴筋的长度方向与转轴的轴线平行;所述相邻轴筋间设有导风板;所述导风板与转轴间形成通风腔。 [0004] according to the aspect of the present invention provides a three-phase asynchronous motor having a hollow shaft of the wind deflector, comprising a shaft, a surface extending outwardly of the rotating shaft in the middle of the rotation shaft disposed along the axis of the radial ribs uniformly distributed symmetrically axis direction of the shaft longitudinal ribs parallel to the rotating shaft; between the axes of the ribs provided adjacent the air guide plate; the wind deflecting plate and the plenum chamber is formed between the rotating shaft.

[0005] 所述轴筋的两端设置幅板,轴筋的两端通过幅板与转轴固定连接。 [0005] provided at both ends of the shaft rib webs, by the end of the shaft reinforcement plate fixedly connected to the web shaft. 所述轴筋的横断面成梯形。 The trapezoidal cross section of the shaft rib. 所述转轴内有轴孔。 The shaft has a shaft hole. 所述轴筋上设有键槽。 Provided on the shaft keyway ribs.

[0006] 本发明的优点:通过相邻轴筋的两端均设置导风板,导风板与转轴间形成通风腔, 减小了气流流过的面积,增加了气流的风压,使流过的风速增大,提高了散热效果,延长了三相异步电动机的使用寿命,降低了使用成本,结构简单,安全可靠。 [0006] The advantages of the invention: by the end of the shaft ribs are disposed adjacent to the deflector, the deflector between the plenum chamber is formed with the shaft, reducing the area through the air flow, increasing the pressure of the gas flow, the flow through the wind speed increases, improving the cooling effect, extend the life of the three-phase asynchronous motors, reduce the cost, simple, safe and reliable.

附图说明 BRIEF DESCRIPTION

[0007] 图1为本发明的结构示意图。 [0007] FIG. 1 is a schematic structural diagram of the present invention.

[0008] 图2是图1的AA视图。 [0008] FIG. 2 is a view AA of FIG. 1.

具体实施方式 detailed description

[0009] 下面结合具体附图和实施例对本发明作进一步说明。 [0009] The following specific embodiments in conjunction with the drawings and embodiments of the present invention will be further described.

[0010] 如图1〜图2所示:本发明包括转轴1、幅板2、导风板3、轴筋4、通风腔5、轴孔6 及键槽7。 [0010] As shown in FIG. 1 ~ 2: 1 according to the present invention comprises a shaft, webs 2, the deflector 3, the shaft ribs 4, the plenum chamber 5, the shaft hole 6 and 7 keyway.

[0011] 如图1和图2所示:所述转轴1为空心轴,内有轴孔6 ;在所述转轴1的中部表面设置沿转轴1的径向向外延伸的均勻对称分布的轴筋4,所述轴筋4的长度方向均与转轴1 的轴向平行。 [0011] FIGS. 1 and 2: 1 the shaft is a hollow shaft, the shaft hole 6; provided along the surface of the rotating shaft in the middle of the shaft 1 1 is a radially symmetrical distribution of outwardly extending shaft 4 ribs, ribs longitudinal direction of the shaft 4 are parallel to the axial direction of the rotary shaft 1. 内风扇产生的气流可以沿相邻轴筋4间的通道导出到机座表面。 Airflow generated by the fan can channel along adjacent rib shaft 4 is exported to the base surface. 轴筋4的两端均设置有幅板2,轴筋4通过幅板2与转轴1固定连接。 Ends of the shaft 4 is provided with a rib webs 2, the shaft 4 is fixed ribs are connected by a web plate 2 and the rotary shaft. 轴筋4的横断面成梯形。 The rib shaft 4 trapezoidal cross section. 所述相邻轴筋4的两端均设置导风板3,所述导风板3与转轴1间形成通风腔5,内风扇产生的气流从通风腔5内导出到机座表面。 Both ends of the shaft adjacent ribs 4 are disposed air guiding plate 3, the air guide plate 3 is formed with a plenum chamber shaft 5, airflow generated by the fan 5 derived from the plenum chamber to the base surface.

[0012] 由于相邻轴筋4间的气流通道较大,内风扇产生的气流在沿气流通道内流动时的风压较小,即气流流动时的风速较小,散热效果不明显。 [0012] Since the air flow passage rib adjacent the shaft 4 is large, when the pressure of the airflow generated by the fan flows along the inner gas flow channel is small, i.e., wind speed at a smaller air flow, the heat dissipation effect is not obvious. 为了提高气流流动的风压,提高气流风速,在相邻的轴筋4间设置导风板3 ;所述导风板3能够减小气流流过的截面。 In order to increase the pressure of the air flow, improving the air flow speed, the shaft adjacent ribs 4 provided between the air guide plate 3; the air guide plate 3 can be reduced cross-sectional flow of air passing. 所述轴筋4上还设有键槽7。 Ribs on the shaft 4 also has a key groove 7.

[0013] 如图1和图2所示:使用时,气流沿转轴1的轴向方向通过通风腔5内;由于设置导风板3,因此气流进入导风板3与转轴1间的通风腔5内,减小了气流流过的截面,增加了气流的风压,使流过的风速加快,提高了散热效果。 [0013] FIGS. 1 and 2: In use, the airflow in the axial direction of the rotary shaft 1 through the plenum chamber 5; since the air guide plate 3, the gas flow into the plenum chamber between the air guide plate 1 and the shaft 3 5, a cross section of reduced airflow through, increasing the pressure of the gas stream, so that the accelerated wind speed flows, improving the cooling effect.

[0014] 本发明通过相邻轴筋4的两端均设置导风板3,导风板3与转轴1间形成通风腔5,减小了气流流过的面积,增加了气流的风压,使流过的风速增大,提高了散热效果,延长了三相异步电动机的使用寿命,降低了使用成本,结构简单,安全可靠。 [0014] The present invention both ends of the shaft adjacent ribs 4 are provided air guide plate 3, the air guide plate 3 is formed with a plenum chamber 5 shaft, reducing the area through the air flow, increasing the pressure of the gas stream, flowing through the wind speed is increased to improve the cooling effect, extend the life of the three-phase asynchronous motors, reduce the cost, simple, safe and reliable.

Claims (5)

  1. 一种具有导风板的三相异步电动机空心轴,包括转轴(1),在所述转轴(1)的中部表面设置沿转轴(1)的径向向外延伸均匀对称分布的轴筋(4),所述轴筋(4)的长度方向与转轴(1)的轴线平行;其特征是:所述相邻轴筋(4)间设有导风板(3);所述导风板(3)与转轴(1)间形成通风腔(5)。 Phase asynchronous motor having a hollow shaft of the wind deflector, comprising a shaft (1), disposed along the shaft (1) is in the middle of the surface of the shaft (1) radially outwardly extending ribs symmetrical distribution shaft (4 ), said rib shaft (4) in the direction of the longitudinal axis (1) parallel to the axis; characterized in that: the axis between the adjacent ribs (4) is provided with air guide plate (3); said wind deflector ( 3) with the shaft (5) (1) is formed between the vent lumen.
  2. 2.根据权利要求1所述具有导风板的三相异步电动机空心轴,其特征是:所述轴筋(4) 的两端设置幅板(2),轴筋(4)的两端通过幅板(2)与转轴(1)固定连接。 1 according to the three-phase asynchronous motor having a hollow shaft of the wind deflector as claimed in claim, wherein: both ends of the rib shaft (4) disposed webs (2), rib shaft (4) by both ends the web plate (2) with the shaft (1) is fixedly connected.
  3. 3.根据权利要求1所述具有导风板的三相异步电动机空心轴,其特征是:所述轴筋(4) 的横断面成梯形。 3. The three-phase asynchronous motor having a hollow shaft of the air guide plate according to claim, wherein: said rib shaft (4) of the trapezoidal cross-section.
  4. 4.根据权利要求1所述具有导风板的三相异步电动机空心轴,其特征是:所述转轴(1) 内有轴孔(6)。 1 4. The three-phase asynchronous motor having a hollow shaft of the air guide plate according to claim, characterized in that: with said axis (1) of the shaft hole (6).
  5. 5.根据权利要求1所述具有导风板的三相异步电动机空心轴,其特征是:所述轴筋(4) 上设有键槽(7)。 1 5. The hollow shaft three-phase asynchronous motor having a wind deflector according to claim, wherein: said rib shaft (4) provided with grooves (7).
CN 201010230422 2010-07-12 2010-07-12 Three-phase asynchronous motor hollow shaft with air deflectors CN101917102B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102780319A (en) * 2012-07-27 2012-11-14 抚顺煤矿电机制造有限责任公司 Explosion suppression type motor air deflection structure
CN104776110A (en) * 2015-04-13 2015-07-15 宋天顺 Hollow shaft and rotating shaft

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800315A (en) * 1986-09-26 1989-01-24 Metabowerke Gmbh & Co. Air-cooled rotor for electric motor
CN2292347Y (en) * 1997-05-22 1998-09-23 曹政治 Electric motor
CN2691151Y (en) * 2004-04-12 2005-04-06 赵文钦 Generator rotor using air ventilation cooling
CN201103946Y (en) * 2007-08-12 2008-08-20 黄少华 Efficient exhauster for removing cooking fumes
CN101626178A (en) * 2009-07-28 2010-01-13 永济新时速电机电器有限责任公司 Closed air-cooling motor
CN201742265U (en) * 2010-07-12 2011-02-09 无锡锡山安达防爆电气设备有限公司 Hollow shaft of three-phase asynchronous motor with air guide plates

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800315A (en) * 1986-09-26 1989-01-24 Metabowerke Gmbh & Co. Air-cooled rotor for electric motor
CN2292347Y (en) * 1997-05-22 1998-09-23 曹政治 Electric motor
CN2691151Y (en) * 2004-04-12 2005-04-06 赵文钦 Generator rotor using air ventilation cooling
CN201103946Y (en) * 2007-08-12 2008-08-20 黄少华 Efficient exhauster for removing cooking fumes
CN101626178A (en) * 2009-07-28 2010-01-13 永济新时速电机电器有限责任公司 Closed air-cooling motor
CN201742265U (en) * 2010-07-12 2011-02-09 无锡锡山安达防爆电气设备有限公司 Hollow shaft of three-phase asynchronous motor with air guide plates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102780319A (en) * 2012-07-27 2012-11-14 抚顺煤矿电机制造有限责任公司 Explosion suppression type motor air deflection structure
CN104776110A (en) * 2015-04-13 2015-07-15 宋天顺 Hollow shaft and rotating shaft

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