WO2020124981A1 - Integrated centrifugal fan set having high maintainability - Google Patents
Integrated centrifugal fan set having high maintainability Download PDFInfo
- Publication number
- WO2020124981A1 WO2020124981A1 PCT/CN2019/093309 CN2019093309W WO2020124981A1 WO 2020124981 A1 WO2020124981 A1 WO 2020124981A1 CN 2019093309 W CN2019093309 W CN 2019093309W WO 2020124981 A1 WO2020124981 A1 WO 2020124981A1
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- WIPO (PCT)
- Prior art keywords
- motor
- ventilation unit
- centrifugal
- groove
- unit according
- Prior art date
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Classifications
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- 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
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- 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
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Definitions
- the invention relates to the technical field of centrifugal fans, in particular to a high-maintenance integrated centrifugal fan unit.
- the centrifugal ventilation unit has an important role in its performance.
- the existing centrifugal ventilation unit is directly installed on the locomotive through bolts.
- the bolts used for fixing need to be completely removed, resulting in its installation or disassembly The process consumes a lot of time.
- the present invention proposes a high-maintenance integrated centrifugal ventilation unit.
- the centrifugal ventilation unit can be easily installed on or removed from the locomotive.
- a high-maintenance integrated centrifugal ventilation unit includes a current collector, a centrifugal impeller, a mounting frame and a motor, the motor is fixed on the mounting frame, the centrifugal impeller is mounted on the output shaft of the motor, and the current collector is fixed on
- the mounting frame is placed on the front end of the centrifugal impeller, and also includes a slide rail and a T-shaped bolt.
- the slide rail is provided with a T-shaped chute extending along its length.
- the mounting frame is installed on the T-shaped slide through the T-shaped bolt. In the slot
- the T-shaped chute includes a screw accommodating groove and a clamping groove, and there are two sliding surfaces in the clamping groove, the two sliding surfaces are oppositely arranged with the center line of the T-shaped chute as a symmetry axis, and the sliding surface Inclined with the center line of the T-shaped chute so that the depth of the card slot gradually increases in the direction along the center line of the T-shaped chute to both sides,
- the T-bolt includes a head and a screw, the head is fixed at one end of the screw, an end surface of the head with the screw is provided with a clamping surface having the same angle as the sliding surface, and the screw is provided There is a fixing nut for fixing the T-bolt and the mounting bracket;
- shock absorber is also provided between the mounting bracket and the fixing nut;
- one end of the mounting frame on which the current collector is fixed has a mounting plate, the mounting surface of the current collector is provided with a groove, and a sealing rubber strip is provided in the groove;
- the centrifugal impeller includes a front disc, a backward blade, a rear disc, and an axle disc.
- the front disc, the backward blade, and the rear disc are welded together, and the axle disc and the rear disc are connected by bolts.
- the rear disc has a forward A conical groove recessed on one side of the disk, when the motor is connected to the centrifugal impeller, the front end of the motor is placed in the conical groove;
- cone angle of the tapered groove is 152° to 156°;
- the front disc has a plurality of slots distributed uniformly in the circumferential direction, the slots are rectangular, and the backward blades are inserted into the slots and welded and fixed;
- the output shaft of the motor is a tapered shaft, and the front end of the tapered shaft has a left-hand thread, and the screw direction is opposite to that of the impeller;
- water leakage openings are provided on the upper and lower sides of the front and rear ends of the motor.
- the centrifugal ventilation unit also includes a slide rail and a T-bolt, and the slide rail is provided with a T-shaped chute and a centrifugal fan
- the mounting bracket is connected to the T-shaped chute through T-shaped bolts. During the installation and disassembly of the centrifugal fan, only the nut set on the bolt needs to be loosened slightly, which reduces the working strength; 2. Because the mounting bracket uses T-shaped bolts Connected with T-shaped chute, T-shaped bolts can be easily inserted into T-shaped chute, thus reducing the requirements for installation accuracy and reducing the working intensity of installation; 3.
- T-shaped chute has an inclined sliding surface
- T The type bolt has a matching clamping surface, so that when the T-shaped bolt is placed in the T-shaped chute, the sliding surface and the clamping surface interact to automatically align the motor and ensure the installation accuracy; 4.
- the mounting bracket There is a shock absorber between it and the fixing nut, which can reduce the vibration introduced to the centrifugal fan and ensure its working life; 5.
- the centrifugal impeller is provided with a tapered groove. When the motor and the centrifugal impeller are fixed, the front end of the motor is placed In the conical groove, the volume of the centrifugal fan group can be reduced to make it smaller; 6.
- the centrifugal impeller is provided with a slot, which can facilitate positioning during the blade welding process of the centrifugal impeller.
- FIG. 1 is a front view of the high-maintenance integrated centrifugal ventilation unit disclosed in the present invention
- Figure 2 is the right side view of Figure 1;
- Figure 3 is an enlarged view of the dotted line in Figure 2;
- Figure 4 is a structural diagram of the slide rail
- FIG. 5 is a structural diagram of the T-bolt
- FIG. 6 is a structural diagram of the centrifugal impeller
- FIG. 7 is a right side view of FIG. 6;
- Figure 8a is a front view of the current collector
- FIG. 8b is a cross-sectional view at A-A in FIG. 8a;
- Fig. 9 is a structural diagram of a motor output shaft.
- a high-maintenance integrated centrifugal ventilation unit disclosed by the present invention includes a current collector 1, a centrifugal impeller 2, a mounting frame 3, and a motor 4.
- the motor 4 is fixed on the mounting frame 3
- the centrifugal impeller 2 is mounted on the output shaft 41 of the motor 4
- the current collector 1 is fixed on the mounting frame 3 and placed at the front end of the centrifugal impeller 2, and also includes a slide rail 5 and a T-bolt 6, the slide rail 5 is provided with a T-shaped chute 50 extending in the longitudinal direction thereof, and the mounting bracket 3 is installed in the T-shaped chute 50 through a T-shaped bolt 6.
- the slide rail 5 is fixed to the bottom mounting beam of the vehicle by bolts.
- the T-shaped chute 50 includes a screw receiving groove 51 and a clamping groove 52, and the clamping groove 52 has two sliding surfaces 53, the two sliding The surface 53 is oppositely arranged with the center line of the T-shaped chute 50 as the axis of symmetry.
- the T-shaped bolt 6 includes a head 60 and a screw 61. The head 60 is fixed to one end of the screw 61. The head 60 has a screw 61 An engaging surface 62 having the same angle as the sliding surface 53 is provided on one end surface of the shaft, and a fixing nut 7 for fixing the T-bolt 6 and the mounting frame 3 is provided on the screw 61.
- the T-shaped bolt 6 When the T-shaped bolt 6 is connected to the T-shaped chute 50, the head of the T-shaped bolt 6 is placed in the clamping groove 52 and the clamping surface 62 is in contact with the sliding surface 53, the T-shaped bolt 6 can be in the T-shaped chute 50 slide.
- the current collector 1, the centrifugal impeller 2 and the motor 4 are all installed on the mounting frame 3 to form an integrated structure, and the mounting frame 3 is fixed with a T-bolt 6, when the centrifugal ventilation unit needs to be installed on the locomotive
- the screw-in and screw-out causes time-consuming and other problems.
- the centrifugal ventilation unit of the present invention can be installed on the locomotive through the slide rail, or can be hoisted on the locomotive.
- the sliding surface 53 may be perpendicular to the center line of the T-shaped sliding groove 50 so that the clamping groove 52 is a rectangular groove.
- the sliding surface 53 and the center line of the T-shaped chute 50 are inclined so that the locking slot 52 is on both sides along the center line of the T-shaped chute 50
- the depth gradually increases in the direction of (the cross-sectional shape of the clamping slot is a right-angled trapezoid with two upper bottoms butted, and the sides of the two right-angled clips of the trapezium are on the side away from the screw receiving groove in the height direction of the slide rail), the head
- the engaging surface 62 of the portion 60 is an inclined surface having the same angle as the oblique waist of the trapezoid.
- the T-shaped bolt 6 When the mounting bracket 3 is connected to the T-shaped chute 50 through the T-shaped bolt 6, the T-shaped bolt 6 interacts with the sliding surface and the clamping surface under the gravity of the centrifugal ventilation unit, making the center line of the T-shaped bolt and the T-shaped sliding The center lines of the slots are aligned with each other to ensure installation accuracy.
- a damper 8 is further provided between the mounting frame 3 and the fixing nut 7, which can reduce the vibration between the locomotive and the centrifugal ventilation unit.
- one end of the mounting bracket 3 on which the current collector 1 is fixed has a mounting plate 30, as shown in FIGS. 8a and 8b, the mounting surface of the current collector 1 is provided with a groove 10.
- the groove 10 it is fixedly connected to the mounting plate by a countersunk bolt, and a sealing strip 11 is provided in the groove 10.
- the centrifugal impeller 2 includes a front disc 20, a backward blade 21, a rear disc 22, and a shaft disc 23.
- the front disc 20, the rear blade 21, and the rear disc 22 are welded together
- the shaft disk 23 and the rear disk 22 are connected by bolts.
- the rear disk 22 has a tapered groove 25 recessed on the side of the front disk 20.
- the front end of the motor is placed in a cone In the shape of the groove, when the motor is fixed with the centrifugal impeller, the front end of the motor is placed in the tapered groove, which can reduce the volume of the centrifugal fan group and make it smaller.
- the cone angle of the tapered groove is 152° to 156°.
- a plurality of slots 24 are evenly distributed on the outer circumference of the front disc 20.
- the slots 24 are rectangular.
- the backward blades are inserted into the slots and welded and fixed. It is convenient to position the backward blades for welding.
- the output shaft 41 of the motor is a tapered shaft, which includes a threaded portion 42 and a tapered portion 43.
- the threaded portion 42 is provided with a left-handed thread.
- the thread direction is opposite to that of the impeller. Avoid loose impeller.
- the upper and lower sides of the front and rear ends of the motor are provided with water leakage ports 40, which can facilitate the discharge of condensed water generated inside the motor due to changes in the external high and low temperature when sitting or lifting.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (9)
- 一种高维护性一体式离心通风机组,包括集流器、离心叶轮、安装架以及电机,所述电机固定在安装架上,离心叶轮安装在电机的输出轴上,所述集流器固定在安装架上并置于离心叶轮前端,其特征在于:还包括滑轨和T型螺栓,所述滑轨上设有沿其长度方向延伸的T型滑槽,所述安装架通过T型螺栓安装在T型滑槽中。A high-maintenance integrated centrifugal ventilation unit includes a current collector, a centrifugal impeller, a mounting frame and a motor, the motor is fixed on the mounting frame, the centrifugal impeller is mounted on the output shaft of the motor, and the current collector is fixed on The mounting frame is placed on the front end of the centrifugal impeller. It is characterized in that it also includes a slide rail and a T-bolt. The slide rail is provided with a T-shaped chute extending along its length. The mounting frame is installed by a T-bolt In the T-shaped chute.
- 根据权利要求1所述的高维护性一体式离心通风机组,其特征在于:所述T型滑槽包括螺杆容纳槽和卡槽,所述卡槽内具有两个滑动面,所述两个滑动面以T型滑槽的中线为对称轴相对设置,且滑动面与T型滑槽的中线倾斜使得卡槽在沿T型滑槽的中线向两侧的方向上深度逐渐增加,The high-maintenance integrated centrifugal ventilation unit according to claim 1, wherein the T-shaped chute includes a screw receiving groove and a clamping groove, and the clamping groove has two sliding surfaces, and the two sliding The surface is set opposite to the center line of the T-shaped chute as the axis of symmetry, and the inclination of the sliding surface and the center line of the T-shaped chute makes the groove gradually increase in depth along the center line of the T-shaped chute to both sides.所述T型螺栓包括头部和螺杆,所述头部固定在螺杆一端,所述头部具有螺杆的一端面上设有与所述滑动面具有相同角度的卡接面,所述螺杆上设有用于将T型螺栓与安装架固定的固定螺母。The T-bolt includes a head and a screw, the head is fixed at one end of the screw, an end surface of the head with the screw is provided with a clamping surface having the same angle as the sliding surface, and the screw is provided There is a fixing nut for fixing the T-bolt to the mounting bracket.
- 根据权利要求2所述的高维护性一体式离心通风机组,其特征在于:所述安装架和固定螺母之间还设有减振器。The high-maintenance integrated centrifugal ventilation unit according to claim 2, wherein a vibration damper is further provided between the mounting frame and the fixing nut.
- 根据权利要求3所述的高维护性一体式离心通风机组,其特征在于:所述安装架上固定集流器的一端具有安装板,所述集流器的安装面上设有凹槽,凹槽内设有密封胶条。The high-maintenance integrated centrifugal ventilation unit according to claim 3, characterized in that: the end of the mounting bracket on which the current collector is fixed has a mounting plate, and the mounting surface of the current collector is provided with a groove and a concave There is a sealing strip in the tank.
- 根据权利要求4所述的高维护性一体式离心通风机组,其特征在于:所述离心叶轮包括前盘、后向叶片、后盘以及轴盘,前盘、后向叶片和后盘焊接在一起,轴盘与后盘通过螺栓连接;The high-maintenance integrated centrifugal ventilation unit according to claim 4, characterized in that the centrifugal impeller includes a front disc, a backward blade, a rear disc and a shaft disc, and the front disc, the backward blade and the rear disc are welded together , The axle disc and the rear disc are connected by bolts;所述后盘具有向前盘一侧凹入的锥形凹槽,当所述电机与离心叶轮连接时,所述电机前端置于锥形凹槽内。The rear disk has a tapered groove recessed on one side of the front disk. When the motor is connected to the centrifugal impeller, the front end of the motor is placed in the tapered groove.
- 根据权利要求4所述的高维护性一体式离心通风机组,其特征在于:所述锥形凹槽的锥角为152°至156°。The high-maintenance integrated centrifugal ventilation unit according to claim 4, wherein the cone angle of the tapered groove is 152° to 156°.
- 根据权利要求5所述的高维护性一体式离心通风机组,其特征在于:所述前盘周向均布有多个插槽,插槽为矩形,后向叶片插到插槽内并进行焊接固定。The high-maintenance integrated centrifugal ventilation unit according to claim 5, characterized in that: the front disk is circumferentially distributed with a plurality of slots, the slots are rectangular, and the backward blades are inserted into the slots and welded and fixed.
- 根据权利要求6所述的高维护性一体式离心通风机组,其特征在于:所述电机的输出轴为锥轴,锥轴前端有左旋螺纹,螺纹旋向与叶轮旋向相反。The high-maintenance integrated centrifugal ventilation unit according to claim 6, characterized in that the output shaft of the motor is a tapered shaft, and the front end of the tapered shaft has a left-hand thread, and the thread rotation direction is opposite to that of the impeller.
- 根据权利要求7所述的高维护性一体式离心通风机组,其特征在于:所述电机的前、后端的上下两侧均设有漏水口。The high-maintenance integrated centrifugal ventilating unit according to claim 7, characterized in that water leakage ports are provided on the upper and lower sides of the front and rear ends of the motor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201811543741.9A CN109340157A (en) | 2018-12-17 | 2018-12-17 | A kind of high maintenance integral type centrifugal fan group |
CN201811543741.9 | 2018-12-17 |
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WO2020124981A1 true WO2020124981A1 (en) | 2020-06-25 |
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PCT/CN2019/093309 WO2020124981A1 (en) | 2018-12-17 | 2019-06-27 | Integrated centrifugal fan set having high maintainability |
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CN (1) | CN109340157A (en) |
WO (1) | WO2020124981A1 (en) |
Families Citing this family (1)
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CN109340157A (en) * | 2018-12-17 | 2019-02-15 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
Citations (5)
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DE29719605U1 (en) * | 1997-11-05 | 1997-12-18 | Gebhardt Ventilatoren GmbH & Co, 74638 Waldenburg | Fan arrangement |
CN201539421U (en) * | 2009-09-03 | 2010-08-04 | 上海诺地乐通用设备制造有限公司 | Extraction structure of centrifugal fan |
CN206017216U (en) * | 2016-08-30 | 2017-03-15 | 安陆市盛鑫风机有限公司 | A kind of easy-to-mount centrifugal blower |
CN206708100U (en) * | 2017-04-28 | 2017-12-05 | 宜昌市西峡泵业有限公司 | Centrifugal pump and the more size Matching installation pedestals of motor |
CN109340157A (en) * | 2018-12-17 | 2019-02-15 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
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US7077627B2 (en) * | 2004-08-16 | 2006-07-18 | Minel Kupferberg | Fan assembly and method |
CN104265673A (en) * | 2014-10-10 | 2015-01-07 | 江苏富丽华通用设备有限公司 | Fixing support for axial flow fan motor |
CN204415397U (en) * | 2014-12-16 | 2015-06-24 | 南车青岛四方机车车辆股份有限公司 | The car body of EMU and outer hood mounting structure |
CN205532714U (en) * | 2016-02-03 | 2016-08-31 | 维机轨道交通科技(镇江)有限公司 | Antiskid channel |
CN205841248U (en) * | 2016-03-25 | 2016-12-28 | 株洲联诚集团有限责任公司 | A kind of traction converter of motor train unit cooling blower without scroll casing type |
CN206889302U (en) * | 2017-07-04 | 2018-01-16 | 江苏中科云控智能工业装备有限公司 | A kind of easy-to-mount heat abstractor electric fan |
CN208057464U (en) * | 2018-04-02 | 2018-11-06 | 威海克莱特菲尔风机股份有限公司 | Centrifugal blower |
CN209510680U (en) * | 2018-12-17 | 2019-10-18 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
-
2018
- 2018-12-17 CN CN201811543741.9A patent/CN109340157A/en active Pending
-
2019
- 2019-06-27 WO PCT/CN2019/093309 patent/WO2020124981A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29719605U1 (en) * | 1997-11-05 | 1997-12-18 | Gebhardt Ventilatoren GmbH & Co, 74638 Waldenburg | Fan arrangement |
CN201539421U (en) * | 2009-09-03 | 2010-08-04 | 上海诺地乐通用设备制造有限公司 | Extraction structure of centrifugal fan |
CN206017216U (en) * | 2016-08-30 | 2017-03-15 | 安陆市盛鑫风机有限公司 | A kind of easy-to-mount centrifugal blower |
CN206708100U (en) * | 2017-04-28 | 2017-12-05 | 宜昌市西峡泵业有限公司 | Centrifugal pump and the more size Matching installation pedestals of motor |
CN109340157A (en) * | 2018-12-17 | 2019-02-15 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
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