CN105090109A - Impeller assembly of high-speed centrifugal type air blower - Google Patents
Impeller assembly of high-speed centrifugal type air blower Download PDFInfo
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- CN105090109A CN105090109A CN201510579971.0A CN201510579971A CN105090109A CN 105090109 A CN105090109 A CN 105090109A CN 201510579971 A CN201510579971 A CN 201510579971A CN 105090109 A CN105090109 A CN 105090109A
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- impeller
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- rotor shaft
- speed centrifugal
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Abstract
The invention discloses an impeller assembly of a high-speed centrifugal type air blower. The impeller assembly comprises a rotor, a rotor shaft, an impeller, a double-ended bolt and a pressing nut, wherein a groove is formed in the upper end surface of the rotor; a lug boss which is adaptive to the groove is arranged on the lower end surface of the impeller; the groove and the lug boss adopt a medium positioning and matching mode; the rotor shaft is fixedly connected with the rotor; the upper end of the rotor shaft extends into the groove; the lower end of the double-ended bolt is in threaded connection on the rotor shaft; the impeller is arranged on the double-ended bolt in a sleeving mode; the lug boss of the impeller is arranged in the groove of the rotor; the pressing nut is in threaded connection on the double-ended bolt; the impeller is fastened on the rotor; a positioning slot is formed in the lower end surface of the lug boss; and the upper end of the rotor shaft extends into the positioning slot. According to the impeller assembly, the rotor and the impeller are quick to mount; during high-speed operation, by virtue of thermal expansion of the impeller and centrifugal force, dynamic performances of the rotor and the impeller are almost kept unchanged; and the pressing nut is pressed into the upper end of the double-ended bolt, so that the rotor and the impeller are firmly locked together.
Description
Technical field:
The present invention relates to a kind of impeller assembly of high-speed centrifugal blower, it belongs to field of mechanical technique.
Background technique:
General centrifugal blower at present, rotor shaft inserts and is connected to together by the mode of keyway and bolt-locking in impeller bore, and still adopt conventional coupling arrangement at high-speed centrifugal blower (more than 18000 revs/min), the thermal expansion deformation amount produced when impeller (aluminum alloy) High Rotation Speed and centrifugal action make to be easy between impeller and axle produce loosening, rotor dynamics variation, shorten bearing working life, reduce equipment use reliability.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Summary of the invention:
The present invention is the impeller assembly providing a kind of high-speed centrifugal blower in order to solve above-mentioned prior art existing problems, the advantages such as it has rotor dynamics, and anti-loosing effect is good.
The technical solution adopted in the present invention has: a kind of impeller assembly of high-speed centrifugal blower, it comprises rotor, rotor shaft, impeller, stud bolt and gland nut, described rotor upper-end surface is provided with a groove, the lower end surface of impeller is provided with the boss suitable with described groove, described rotor shaft is fixedly connected with rotor, and the upper end of rotor shaft stretches in groove, the lower end of stud bolt is threaded on rotor shaft, impeller set is located on stud bolt, and the boss of impeller is placed in the groove of rotor, gland nut is threaded on stud bolt, and impeller is anchored on rotor, the lower end surface of described boss is provided with a locating slot, the upper end of described rotor shaft extends in locating slot.
Further, described epitrochanterian groove and rotor coaxial are arranged.
Further, described rotor shaft is provided with tapped hole, and the lower end of described stud bolt is threaded in the tapped hole of rotor shaft.
Further, medium location fit mode (H7/f6) is adopted between the groove of described rotor and the boss of impeller.
Further, elastic washer is provided with between described gland nut and impeller.
The present invention has following beneficial effect: after rotor of the present invention and impeller adopt medium location fit mounting type, then be screwed into gland nut by stud bolt upper end, and then together with rotor is lock onto with impeller.
Accompanying drawing illustrates:
Fig. 1 is the structural drawing of the impeller assembly of high-speed centrifugal blower of the present invention.
Wherein:
1-rotor; 2-rotor shaft; 3-impeller; 4-stud bolt; 5-gland nut; 6-elastic washer; 11-groove; 21-tapped hole; 31-boss; 32-locating slot.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Please refer to shown in Fig. 1, the impeller assembly of high-speed centrifugal blower of the present invention comprises rotor 1, rotor shaft 2, impeller 3, stud bolt 4 and gland nut 5, rotor shaft 2 is fixedly connected with rotor 1, and stud bolt 4 is threaded on rotor shaft 2, and impeller 3 is anchored on rotor 1 by gland nut 5.
Circular groove 11 is provided with in the upper-end surface of rotor 1, this circular groove 11 is coaxial with rotor 1, the round boss 31 suitable with groove 11 is provided with in the lower end surface of impeller 3, rotor shaft 2 is fixedly connected in rotor 1, and the upper end of rotor shaft 2 stretches in the groove 11 of rotor 1, the lower end of stud bolt 4 is threaded in the tapped hole 21 of rotor shaft 2 upper end, impeller 3 is sheathed on stud bolt 4, and the boss 31 of impeller is placed in the groove 11 of rotor, gland nut 5 is threaded on stud bolt 4, elastic washer 6 is provided with between gland nut 5 and impeller 3, the lower surface of gland nut 5 is closely against on the upper surface of elastic washer 6, the lower surface of elastic washer 6 is closely against on the upper surface of impeller 3.
The present invention is further to the location of impeller 3, and the boss 31 of impeller 3 is provided with a locating slot 32, and when impeller 3 is anchored on rotor 1, the upper end of rotor shaft 2 extends in this locating slot 32.
Medium location fit mode (H7/f6) is adopted between the groove 11 of the rotor in the present invention and the boss 31 of impeller.
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 some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (5)
1. the impeller assembly of a high-speed centrifugal blower, it is characterized in that: comprise rotor (1), rotor shaft (2), impeller (3), stud bolt (4) and gland nut (5), described rotor (1) upper-end surface is provided with a groove (11), the lower end surface of impeller (3) is provided with the boss (31) suitable with described groove (11), described rotor shaft (2) is fixedly connected with rotor (1), and the upper end of rotor shaft (2) stretches in groove (11), the lower end of stud bolt (4) is threaded on rotor shaft (2), impeller (3) is sheathed on stud bolt (4), and the boss of impeller (31) is placed in the groove (11) of rotor, gland nut (5) is threaded on stud bolt (4), and impeller (3) is anchored on rotor (1), the lower end surface of described boss (31) is provided with a locating slot (32), the upper end of described rotor shaft (2) extends in locating slot (32).
2. the impeller assembly of high-speed centrifugal blower as claimed in claim 1, is characterized in that: described epitrochanterian groove (11) and rotor (1) are coaxially arranged.
3. the impeller assembly of high-speed centrifugal blower as claimed in claim 2, it is characterized in that: described rotor shaft (2) is provided with tapped hole (21), the lower end of described stud bolt (4) is threaded in the tapped hole (21) of rotor shaft.
4. the impeller assembly of high-speed centrifugal blower as claimed in claim 3, is characterized in that: adopt medium location fit mode between the groove (11) of described rotor and the boss (31) of impeller.
5. the impeller assembly of high-speed centrifugal blower as claimed in claim 4, is characterized in that: be provided with elastic washer (6) between described gland nut (5) and impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579971.0A CN105090109A (en) | 2015-09-11 | 2015-09-11 | Impeller assembly of high-speed centrifugal type air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579971.0A CN105090109A (en) | 2015-09-11 | 2015-09-11 | Impeller assembly of high-speed centrifugal type air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090109A true CN105090109A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510579971.0A Pending CN105090109A (en) | 2015-09-11 | 2015-09-11 | Impeller assembly of high-speed centrifugal type air blower |
Country Status (1)
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| CN (1) | CN105090109A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640750A (en) * | 2016-09-26 | 2017-05-10 | 北京航空航天大学 | High-speed centrifugal compressor impeller rotor |
| CN106787431A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor impeller of rotor quick despatch structure |
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
| CN108757545A (en) * | 2018-07-06 | 2018-11-06 | 无锡市海星船舶动力有限公司 | The armature spindle that installation rigidized cover is bonded |
| CN109255146A (en) * | 2018-07-23 | 2019-01-22 | 长沙理工大学 | A kind of Roots air blower processing method |
| CN110259718A (en) * | 2019-07-29 | 2019-09-20 | 重庆江增船舶重工有限公司 | Vapour compression machine compression impellor combined type overspeed test tool and its application method |
| WO2020134432A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Compressor rotor assembly, compressor and refrigerant circulation system |
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| CN100582489C (en) * | 2004-06-29 | 2010-01-20 | 英格索尔-兰德公司 | Device and method for detachably connecting an impeller to a shaft |
| CN101725563A (en) * | 2009-11-20 | 2010-06-09 | 无锡压缩机股份有限公司 | Draw bail of vane wheel and high-speed rotation shaft of high-speed centrifugal compression device |
| CN102003415A (en) * | 2010-11-24 | 2011-04-06 | 无锡杰尔压缩机有限公司 | Structure for clamping single-stage high-speed centrifugal fan impeller |
| CN102966595A (en) * | 2012-12-11 | 2013-03-13 | 三一能源重工有限公司 | Connecting structure between high-speed rotating shaft and impeller of centrifugal compressor, and centrifugal compressor |
| CN203009384U (en) * | 2013-01-09 | 2013-06-19 | 重庆江增船舶重工有限公司 | Impeller used on fan or compressor |
| CN204041531U (en) * | 2014-09-04 | 2014-12-24 | 长沙赛尔透平机械有限公司 | The connecting structure of centrifugal compressor high speed gear shaft and impeller |
| 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 |
| CN204942072U (en) * | 2015-09-11 | 2016-01-06 | 南京磁谷科技有限公司 | A kind of impeller assembly of high-speed centrifugal blower |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB340450A (en) * | 1930-03-07 | 1931-01-01 | Napier & Son Ltd | Improvements in or relating to rotors |
| US2441432A (en) * | 1945-12-14 | 1948-05-11 | Gen Electric | High-speed rotor |
| JPH01249993A (en) * | 1988-03-31 | 1989-10-05 | Ebara Corp | Blower for high temperature gas |
| CN100582489C (en) * | 2004-06-29 | 2010-01-20 | 英格索尔-兰德公司 | Device and method for detachably connecting an impeller to a shaft |
| CN101725563A (en) * | 2009-11-20 | 2010-06-09 | 无锡压缩机股份有限公司 | Draw bail of vane wheel and high-speed rotation shaft of high-speed centrifugal compression device |
| CN102003415A (en) * | 2010-11-24 | 2011-04-06 | 无锡杰尔压缩机有限公司 | Structure for clamping single-stage high-speed centrifugal fan impeller |
| CN102966595A (en) * | 2012-12-11 | 2013-03-13 | 三一能源重工有限公司 | Connecting structure between high-speed rotating shaft and impeller of centrifugal compressor, and centrifugal compressor |
| CN203009384U (en) * | 2013-01-09 | 2013-06-19 | 重庆江增船舶重工有限公司 | Impeller used on fan or compressor |
| 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 |
| CN204041531U (en) * | 2014-09-04 | 2014-12-24 | 长沙赛尔透平机械有限公司 | The connecting structure of centrifugal compressor high speed gear shaft and impeller |
| CN204942072U (en) * | 2015-09-11 | 2016-01-06 | 南京磁谷科技有限公司 | A kind of impeller assembly of high-speed centrifugal blower |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640750A (en) * | 2016-09-26 | 2017-05-10 | 北京航空航天大学 | High-speed centrifugal compressor impeller rotor |
| CN106787431A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor impeller of rotor quick despatch structure |
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
| CN108757545A (en) * | 2018-07-06 | 2018-11-06 | 无锡市海星船舶动力有限公司 | The armature spindle that installation rigidized cover is bonded |
| CN109255146A (en) * | 2018-07-23 | 2019-01-22 | 长沙理工大学 | A kind of Roots air blower processing method |
| CN109255146B (en) * | 2018-07-23 | 2023-06-02 | 长沙理工大学 | Roots blower impeller processing method |
| WO2020134432A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Compressor rotor assembly, compressor and refrigerant circulation system |
| CN110259718A (en) * | 2019-07-29 | 2019-09-20 | 重庆江增船舶重工有限公司 | Vapour compression machine compression impellor combined type overspeed test tool and its application method |
| CN110259718B (en) * | 2019-07-29 | 2023-10-24 | 重庆江增船舶重工有限公司 | Combined overspeed test tool for air compressing impeller of steam compressor and using method thereof |
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Application publication date: 20151125 |