CN104132005A - Draught fan capable of achieving rotor counterweight balance and counterweight balance method thereof - Google Patents
Draught fan capable of achieving rotor counterweight balance and counterweight balance method thereof Download PDFInfo
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- CN104132005A CN104132005A CN201410385270.9A CN201410385270A CN104132005A CN 104132005 A CN104132005 A CN 104132005A CN 201410385270 A CN201410385270 A CN 201410385270A CN 104132005 A CN104132005 A CN 104132005A
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- rotor
- counterweight
- counterweight screws
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Abstract
The invention discloses a draught fan capable of achieving rotor counterweight balance and a counterweight balance method thereof. The draught fan comprises a rotor, an impeller mounted on the rotor, a flow guide cone, a cooling fan and a fastening nut. The lower section part of the flow guide cone is in threaded connection with the upper tail end of the rotor, the cooling fan is mounted at the lower tail end of the rotor, the fastening nut is mounted on the rotor and located at the position above the cooling fan, the upper end face of the impeller is concaved to form a first counterweight screw hole, a first counterweight ring is integrally formed on the lower end face of the impeller, the lower end face of the cooling fan is concaved to form a second counterweight screw hole, a third counterweight screw hole is formed in the peripheral direction of the fastening nut, a second counterweight ring is integrally formed in the position, between the impeller and the fastening nut, of the rotor, a first counterweight screw and a second counterweight screw are mounted in the first counterweight screw hole, a third counterweight screw is mounted in the second counterweight screw hole, and a fourth counterweight screw is mounted in the third counterweight screw hole.
Description
Technical field:
The present invention relates to a kind of blower fan and counterweigh method thereof that can realize rotor counterweigh, it belongs to field of mechanical technique.
Background technique:
Blower fan rotor is its core component, and in the time that blower fan normally moves, rotor rotates with the speed of more than 30,000 rpms.Due to material, processing, assembling equal error, a rotor just having installed must be to have certain unbalanced (center of mass's axle does not overlap with geometrical central axis), and this will cause that rotor produces centrifugal force in rotary course.Therefore, after rotor has assembled, must first carry out counterweigh to it (tests on dynamic balancing machine, then deduct some quality in some position or increase some quality, to ensure that its residual unbalance, is in an acceptable indication range).If the residual unbalance, of rotor does not reach within the scope of design objective, will cause comparatively serious vibration, even cause working.Therefore need to have adopted a set of comparatively unique counterweigh method, ensure that the residual unbalance, of rotor is up to standard.
Summary of the invention:
The present invention, for solving above-mentioned prior art problem, provides a kind of blower fan and counterweigh method thereof that can realize rotor counterweigh.
The present invention adopts following technological scheme: a kind of blower fan that can realize rotor counterweigh, it comprises rotor, be installed on epitrochanterian impeller, flow deflecting cone, cooling fan and tightening nut, the hypomere portion of described flow deflecting cone is connected together with the upper end thread of rotor after being arranged in the center hole of impeller, described cooling fan is installed on the lower end of rotor, described tightening nut is installed on rotor and is positioned at the position of cooling fan top, the upper-end surface of described impeller has been recessed to form several the first counterweight screws holes, one-body molded on the lower end surface of described impeller have the first counterweight ring, on the lower end surface of described cooling fan, depression is formed with several the second counterweight screws holes, be upwards formed with in the week of described tightening nut several outer surfaces from described tightening nut cave inward form the 3rd counterweight screws hole, on described rotor, being positioned at one-body moldedly on the position in the middle of impeller and tightening nut has the second counterweight ring, in described the first counterweight screws hole, the first counterweight screws and/or the second counterweight screws are installed, in described the second counterweight screws hole, the 3rd counterweight screws is installed, in described the 3rd counterweight screws hole, the 4th counterweight screws is installed.
Further, the position that is positioned at described the second inner side, counterweight screws hole on the lower end surface of described cooling fan is provided with the through hole that runs through cooling fan upper and lower end face, position relative with through hole on described tightening nut is formed with screw, described through hole with screw is installed with together with described cooling fan is installed on tightening nut in screw.
Further, described the second counterweight ring includes two altogether, and one of them is positioned at the side near impeller, and another is positioned at the side near tightening nut.
Further, equidistantly arrange along same circumferencial direction on the upper-end surface of impeller in described the first counterweight screws hole.
Further, equidistantly arrange along same circumferencial direction on the lower end surface of cooling fan in described the second counterweight screws hole.
Further, arrange in the circumferential equal intervals of tightening nut in described the 3rd counterweight screws hole.
The present invention also adopts following technological scheme: a kind of counterweigh method of the blower fan that can realize rotor counterweigh, it comprises the steps:
1). rotor, impeller, flow deflecting cone and tightening nut are installed on together, need to the first counterweight screws be installed in the first counterweight screws hole to play effect of gain according to actual conditions, need to cross grinding to play loss of weight effect at the specifically square tube of the first counterweight ring according to actual conditions simultaneously;
2). on the second counterweight ring of rotor according to actual conditions need to specific local by grinding to play loss of weight effect;
3). need in the first counterweight screws hole, the second counterweight screws be installed according to actual conditions, according to actual conditions, the 4th counterweight screws need to be installed in the 3rd counterweight screws hole simultaneously;
4). by above-mentioned mounted rotor, impeller, flow deflecting cone and tightening nut dismounting;
5). again rotor, impeller, flow deflecting cone and tightening nut are installed in blower fan, at the lower end of rotor, cooling fan are installed simultaneously;
6). need to adjust the position of the second counterweight screws according to actual conditions, according to actual conditions, the 3rd counterweight screws need to be installed in the second counterweight screws hole simultaneously.
The present invention has following beneficial effect: counterweigh method of the present invention is by configure counterweight screws or counterweight ring on impeller, rotor, tightening nut and cooling fan, by weightening finish or loss of weight and then can effectively ensure the counterweigh of blower fan rotor.
Brief description of the drawings:
Fig. 1 is the structural representation that the present invention can realize the blower fan of rotor counterweigh.
Fig. 2 is the local structural graph in Fig. 1.
Fig. 3 is another local structural graph in Fig. 1.
Wherein:
1-rotor; 2-impeller; 3-flow deflecting cone; 4-the first counterweight ring; 5-cooling fan; 6-tightening nut; 7-the 3rd counterweight screws; 8-screw; 9-the 4th counterweight screws; 10-the second counterweight ring; 11-key; 20-the first counterweight screws hole; 21-the first counterweight screws; 22-the second counterweight screws; 50-the second counterweight screws hole; 51-through hole; 60-screw; 61-the 3rd counterweight screws hole.
Embodiment:
Please refer to shown in Fig. 1, blower fan of the present invention comprises rotor 1; Be installed on the impeller 2 on rotor 1; And flow deflecting cone 3.Wherein the central shaft hole of impeller 2 matches with rotor 1, and wherein the central shaft hole of impeller 2 and rotor shaft align, and impeller 2 packs into rotor 1 direction, then by key 11, impeller 2 is mounted on rotor 1.On the upper-end surface of impeller 2, several the first counterweight screws holes 20 are equidistantly recessed to form along same circumferencial direction, the first counterweight screws 21 and/or the second counterweight screws 22 are installed in this first counterweight screws hole 20, wherein the first counterweight screws 21 and the second counterweight screws 22 can divide other to be arranged in the first different counterweight screws holes 20, also can occur that first counterweight screws 21 and second counterweight screws 22 are installed on a situation in counterweight screws hole 20 simultaneously, now the second counterweight screws 22 is positioned at the top of the first counterweight screws 21, the first counterweight screws 21 and the second counterweight screws 22 are selected according to actual needs the number of installing and position and then are played the effect of weightening finish.On the lower end surface of impeller 2 one-body molded have on one first counterweight ring 4, the first counterweight rings 4 be chosen according to actual needs the effect that specific place is carried out grinding and then played loss of weight.The hypomere portion of flow deflecting cone 3 is connected together with the upper end thread of rotor 1 after being arranged in the center hole of impeller 2.
The lower end of rotor 1 is provided with a cooling fan 5, on rotor 1, being positioned at position above cooling fan 5 screws a tightening nut 6 (being shape of threads with tightening nut 6 mated position on its rotor 1) is installed, on the lower end surface of cooling fan 5, several the second counterweight screws holes 50 are equidistantly recessed to form along same circumferencial direction, in this second counterweight screws hole 50, the 3rd counterweight screws 7 is installed, wherein the 3rd counterweight screws 7 is selected according to actual needs the number of installing and position and then is played the effect of weightening finish.The position that is positioned at 50 inner sides, the second counterweight screws hole on the lower end surface of cooling fan 5 is provided with a through hole 51 that runs through cooling fan 5 upper and lower end faces, on tightening nut 6 position relative with through hole 51 be formed with one with screw 60, from the lower end surface of cooling fan 50 through hole 51 with in screw 60, screw screw 8 so that cooling fan 5 is mounted on tightening nut 6 together with.The outer surface that is formed with several Self-fastening nuts 6 in the circumferential equal intervals of tightening nut 6 the 3rd counterweight screws hole 61 forming that caves inward, the 4th counterweight screws 9 is installed in the 3rd counterweight screws hole 61, and wherein the 4th counterweight screws 9 is selected according to actual needs the number of installing and position and then is played the effect of weightening finish.
On rotor 1, being positioned at one-body moldedly on the position in the middle of impeller 2 and tightening nut 6 has two the second counterweight rings 10, wherein in these two the second counterweight rings 10 is positioned at the side near impeller 2, the side that another is positioned near tightening nut 6, is chosen in the effect that specific place is carried out grinding and then played loss of weight on two the second counterweight rings 10 according to actual needs.
The method that the present invention realizes rotor counterweigh comprises the steps:
1). rotor 1, impeller 2, flow deflecting cone 3 and tightening nut 6 are installed on together, need to the first counterweight screws 21 be installed in the first counterweight screws hole 20 to play effect of gain according to actual conditions, need to cross grinding to play loss of weight effect at the specifically square tube of the first counterweight ring 4 according to actual conditions simultaneously;
2). on two the second counterweight rings 10 of rotor 1 according to actual conditions need to specific local by grinding to play loss of weight effect;
3). according to actual conditions, the second counterweight screws 22 need to be installed in the first counterweight screws hole 20, according to actual conditions, the 4th counterweight screws 9 need to be installed in the 3rd counterweight screws hole 61 simultaneously;
4). above-mentioned mounted rotor 1, impeller 2, flow deflecting cone 3 and tightening nut 6 are dismantled;
5). again rotor 1, impeller 2, flow deflecting cone 3 and tightening nut 6 are installed in blower fan, at the lower end of rotor 1, cooling fan 5 are installed simultaneously;
6). need to adjust the position of the second counterweight screws 2 according to actual conditions, according to actual conditions, the 3rd counterweight screws 7 need to be installed in the second counterweight screws hole 50 simultaneously.
Counterweigh method of the present invention is by configure counterweight screws or counterweight ring on impeller, rotor, tightening nut and cooling fan, by weightening finish or loss of weight and then can effectively ensure the counterweigh of blower fan rotor.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make under the premise without departing from the principles of the invention some improvement, and these improve and also should be considered as protection scope of the present invention.
Claims (7)
1. can realize the blower fan of rotor counterweigh for one kind, it comprises rotor (1), be installed on the impeller (2) on rotor (1), flow deflecting cone (3), cooling fan (5) and tightening nut (6), the hypomere portion of described flow deflecting cone (3) is connected together with the upper end thread of rotor (1) after being arranged in the center hole of impeller (2), described cooling fan (5) is installed on the lower end of rotor (1), described tightening nut (6) is installed on rotor (1) above and is positioned at the position of cooling fan (5) top, it is characterized in that: the upper-end surface of described impeller (2) has been recessed to form several the first counterweight screws holes (20), one-body molded on the lower end surface of described impeller (2) have the first counterweight ring (4), on the lower end surface of described cooling fan (5), depression is formed with several the second counterweight screws holes (50), be upwards formed with in the week of described tightening nut (6) several outer surfaces from described tightening nut (6) cave inward form the 3rd counterweight screws hole (61), on described rotor (1), being positioned at one-body moldedly on the position in the middle of impeller (2) and tightening nut (6) has the second counterweight ring (10), in described the first counterweight screws hole (20), the first counterweight screws (21) and/or the second counterweight screws (22) are installed, in described the second counterweight screws hole (50), the 3rd counterweight screws (7) is installed, in described the 3rd counterweight screws hole (61), the 4th counterweight screws (9) is installed.
2. a kind of blower fan that can realize rotor counterweigh as claimed in claim 1, it is characterized in that: the position that is positioned at described the second inner side, counterweight screws hole (50) on the lower end surface of described cooling fan (5) is provided with the through hole (51) that runs through cooling fan (5) upper and lower end face, be formed with screw (60) in the upper position relative with through hole (51) of described tightening nut (6), screw (8) is installed in described through hole (51) and screw (60) so that described cooling fan (5) and tightening nut (6) are installed on together.
3. a kind of blower fan that can realize rotor counterweigh as claimed in claim 2, it is characterized in that: described the second counterweight ring (10) includes two altogether, one of them is positioned at the side near impeller (2), and another is positioned at the side near tightening nut (6).
4. a kind of blower fan that can realize rotor counterweigh as claimed in claim 3, is characterized in that: equidistantly arrange along same circumferencial direction on the upper-end surface of impeller (2) in described the first counterweight screws hole (20).
5. a kind of blower fan that can realize rotor counterweigh as claimed in claim 3, is characterized in that: equidistantly arrange along same circumferencial direction on the lower end surface of cooling fan (5) in described the second counterweight screws hole (50).
6. a kind of blower fan that can realize rotor counterweigh as claimed in claim 3, is characterized in that: arrange in the circumferential equal intervals of tightening nut (6) in described the 3rd counterweight screws hole (61).
7. the counterweigh method that can realize the blower fan of rotor counterweigh, is characterized in that: comprise the steps
1). rotor (1), impeller (2), flow deflecting cone (3) and tightening nut (6) are installed on together, need to the first counterweight screws (21) be installed in the first counterweight screws hole (20) to play effect of gain according to actual conditions, need to cross grinding to play loss of weight effect at the specifically square tube of the first counterweight ring (4) according to actual conditions simultaneously;
2). second counterweight ring (10) of rotor (1) upper according to actual conditions need to specific local by grinding to play loss of weight effect;
3). according to actual conditions, the second counterweight screws (22) need to be installed in the first counterweight screws hole (20), according to actual conditions, the 4th counterweight screws (9) need to be installed in the 3rd counterweight screws hole (61) simultaneously;
4). by above-mentioned mounted rotor (1), impeller (2), flow deflecting cone (3) and tightening nut (6) dismounting;
5). again rotor (1), impeller (2), flow deflecting cone (3) and tightening nut (6) are installed in blower fan, at the lower end of rotor (1), cooling fan (5) are installed simultaneously;
6). need to adjust the position of the second counterweight screws (2) according to actual conditions, according to actual conditions, the 3rd counterweight screws (7) need to be installed in the second counterweight screws hole (50) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385270.9A CN104132005B (en) | 2014-08-06 | 2014-08-06 | A kind of blower fan being capable of rotor counterweight balance and counterweight balance method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385270.9A CN104132005B (en) | 2014-08-06 | 2014-08-06 | A kind of blower fan being capable of rotor counterweight balance and counterweight balance method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104132005A true CN104132005A (en) | 2014-11-05 |
| CN104132005B CN104132005B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385270.9A Active CN104132005B (en) | 2014-08-06 | 2014-08-06 | A kind of blower fan being capable of rotor counterweight balance and counterweight balance method thereof |
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| Country | Link |
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| CN (1) | CN104132005B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712381A (en) * | 2016-12-19 | 2017-05-24 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor cooling fan fixation structure |
| CN117470440A (en) * | 2023-02-28 | 2024-01-30 | 中国航发湖南动力机械研究所 | Method for measuring residual unbalance of dynamic balance of rotor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2454576Y (en) * | 2000-12-22 | 2001-10-17 | 郑宝红 | Self-suction cooling type fire-fighting smoke-exhausting fan |
| CN1793672A (en) * | 2006-01-05 | 2006-06-28 | 林奇文 | On-site balancing method for centrifugal fan impeller |
| RU2372594C1 (en) * | 2008-04-10 | 2009-11-10 | Открытое акционерное общество Научно-производственное объединение "Искра" | Balancing method of assembled rotor |
| CN202297720U (en) * | 2011-10-25 | 2012-07-04 | 赵慧芳 | High-temperature long-shaft fan |
| CN202746281U (en) * | 2012-07-18 | 2013-02-20 | 无锡杰尔压缩机有限公司 | High-speed rotor structure of centrifugal blower |
| RU2492364C1 (en) * | 2012-03-30 | 2013-09-10 | Открытое акционерное общество Научно-производственное объединение "Искра" | Method to balance flexible rotor shaft |
| CN204061346U (en) * | 2014-08-06 | 2014-12-31 | 南京磁谷科技有限公司 | A kind of blower fan that can realize rotor counterweight balance |
-
2014
- 2014-08-06 CN CN201410385270.9A patent/CN104132005B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454576Y (en) * | 2000-12-22 | 2001-10-17 | 郑宝红 | Self-suction cooling type fire-fighting smoke-exhausting fan |
| CN1793672A (en) * | 2006-01-05 | 2006-06-28 | 林奇文 | On-site balancing method for centrifugal fan impeller |
| RU2372594C1 (en) * | 2008-04-10 | 2009-11-10 | Открытое акционерное общество Научно-производственное объединение "Искра" | Balancing method of assembled rotor |
| CN202297720U (en) * | 2011-10-25 | 2012-07-04 | 赵慧芳 | High-temperature long-shaft fan |
| RU2492364C1 (en) * | 2012-03-30 | 2013-09-10 | Открытое акционерное общество Научно-производственное объединение "Искра" | Method to balance flexible rotor shaft |
| CN202746281U (en) * | 2012-07-18 | 2013-02-20 | 无锡杰尔压缩机有限公司 | High-speed rotor structure of centrifugal blower |
| CN204061346U (en) * | 2014-08-06 | 2014-12-31 | 南京磁谷科技有限公司 | A kind of blower fan that can realize rotor counterweight balance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712381A (en) * | 2016-12-19 | 2017-05-24 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor cooling fan fixation structure |
| CN117470440A (en) * | 2023-02-28 | 2024-01-30 | 中国航发湖南动力机械研究所 | Method for measuring residual unbalance of dynamic balance of rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104132005B (en) | 2016-08-24 |
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Address after: 211102 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
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