CN107643174A - A kind of rotor mounting structure in overspeed test bench main frame - Google Patents
A kind of rotor mounting structure in overspeed test bench main frame Download PDFInfo
- Publication number
- CN107643174A CN107643174A CN201711034616.0A CN201711034616A CN107643174A CN 107643174 A CN107643174 A CN 107643174A CN 201711034616 A CN201711034616 A CN 201711034616A CN 107643174 A CN107643174 A CN 107643174A
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- China
- Prior art keywords
- rotor
- running clearance
- spacing
- casing
- motor cabinet
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- Legal status (The legal status 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 status listed.)
- Pending
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- 239000002184 metal Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses the rotor mounting structure in a kind of overspeed test bench main frame, step is fixed on motor cabinet, top chock and step are respectively fixedly connected with the bottom on the top of casing and motor cabinet, the upper end of rotor passes through the upper end of casing, lower end passes through motor cabinet, and the both ends of rotor correspond to stretch in top chock and step respectively, formed with the second running clearance between rotor and the upper end of casing, formed with the 3rd running clearance between rotor and motor cabinet, the spacing of first running clearance is more than the spacing of the second running clearance, the spacing of second running clearance is more than the spacing of the 3rd running clearance.The spacing of the first running clearance is more than the spacing of the second running clearance and the 3rd running clearance in the present invention, can play good position-limiting action in radial direction to rotor, be fitted without the situation of bearing, rotor permanent magnet is cylindrical to be adsorbed onto on stator inner hole.
Description
Technical field：
The present invention relates to the rotor mounting structure in a kind of overspeed test bench main frame.
Background technology：
Rotor in existing overspeed test bench main frame when mounted (such as Fig. 1), be first by upper angular contact bearing 21 and turn
Son 13 is installed together, and lower angular contact bearing 22 and step installation is installed along with motor cabinet, then rotor 13 again from
Stator interior is inserted above main frame, continues down to insert in the lower endoporus of angular contact bearing 22.Defect is to be not easy to change mechanical axis
(the upper and lower angular contact bearing) is held, changes rotor 13 need to be extracted out of casing 11 every time, assembling is cumbersome.If do not take
Aforesaid way changes bearing, and selects directly to choose bearing block to change bearing, may result in rotor 13 in radial direction without about
Beam, and be containing the permanent magnet with magnetic, so that rotor is adsorbed by stator 12 and touch stator over inside rotor 13, it is difficult to dismantle
With installation bearing.
The content of the invention：
The present invention is provided and turned in a kind of overspeed test bench main frame to solve the above-mentioned problems of the prior art
Sub- mounting structure.
The technical solution adopted in the present invention has：A kind of rotor mounting structure in overspeed test bench main frame, including casing,
Stator, rotor and motor cabinet, the motor cabinet are fixed on the bottom of casing, and stator is fixed in casing, rotor rotating support in
The first running clearance, in addition to upper angular contact bearing, lower angular contact bearing, upper axle are formed in stator, and between rotor and stator
Bearing, axle sleeve ring, step and shaft end set, the step are fixed on motor cabinet, top chock and step point
The top of casing and the bottom of motor cabinet are not fixedly connected on, the upper end of rotor passes through the upper end of casing, and lower end passes through motor cabinet,
And the both ends of rotor correspond to stretch in top chock and step respectively, formed with second turn between rotor and the upper end of casing
Dynamic gap, is more than the second running clearance between rotor and motor cabinet formed with the 3rd running clearance, the spacing of the first running clearance
Spacing, the spacing of the second running clearance is more than the spacing of the 3rd running clearance；Upper angular contact bearing is placed in top chock, axle
The collar is sheathed on rotor, and is interference fitted between axle sleeve ring and rotor, and one end of axle sleeve ring is connected to angular contact bearing
On inner ring；The lower angular contact bearing is placed in step, and shaft end covers the bottom for being fixedly connected on rotor, and the set of shaft end set
Mouth is contacted on the inner ring of lower angular contact bearing.
Further, the spacing of first running clearance is 2.5~3.5mm.
Further, the spacing of second running clearance is 0.6~1.5mm.
Further, the spacing of the 3rd running clearance is 0.3~0.5mm.
Further, the top chock is provided with first boss portion, is provided with and first boss portion phase on casing
The upper positioning step hole of adaptation.
The present invention has the advantages that：The spacing of the first running clearance is more than the second running clearance and the in the present invention
The spacing of three running clearances, good position-limiting action can be played in radial direction to rotor, be fitted without the situation of bearing,
Rotor permanent magnet is cylindrical to be adsorbed onto on stator inner hole.
Brief description of the drawings：
Fig. 1 be this in the prior art in overspeed test bench main frame rotor mounting structure.
Fig. 2 is structure chart of the present invention.
Fig. 3 and Fig. 4 is the partial enlarged drawing of the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figures 2 to 4, the present invention discloses the rotor mounting structure in a kind of overspeed test bench main frame, including casing
11st, stator 12, rotor 13, motor cabinet 14, upper angular contact bearing 21, lower angular contact bearing 22, top chock 31, axle sleeve ring 34,
Step 41 and shaft end set 44, motor cabinet 14 is fixed on the bottom of casing 11, and stator 12 is fixed in casing 11,13 turns of rotor
It is dynamic to be supported in stator 12, and the first running clearance 100 is formed between rotor 13 and stator 12.Top chock 31 and step
41 are respectively fixedly connected with the bottom on the top of casing 11 and motor cabinet 14, and the upper end of rotor 13 passes through the upper end of casing 11, under
End is through motor cabinet 14, and the both ends of rotor 13 correspond to stretch in top chock 31 and step 41 respectively, rotor 13 and machine
Formed with the second running clearance 200 between the upper end of shell 11, formed with the 3rd running clearance between rotor 13 and motor cabinet 14
300, the spacing of the first running clearance 100 is more than the spacing of the second running clearance 200, and the spacing of the second running clearance 200 is more than
The spacing of 3rd running clearance 300.Upper angular contact bearing 21 is placed in top chock 31, and axle sleeve ring 34 is sheathed on rotor 13,
And it is interference fitted between axle sleeve ring 34 and rotor 13.One end of axle sleeve ring 34 is connected on the inner ring of angular contact bearing 21.Under
Angular contact bearing 22 is placed in step 41, and shaft end set 44 is fixedly connected on the bottom of rotor 13, and the running-on of shaft end set 44
Contact on the inner ring of lower angular contact bearing 22.
For ease of preferably top chock 31 is positioned on casing 11, first boss portion is provided with top chock 31
311, the upper positioning step hole being adapted with the first boss portion 311 is provided with casing 11.
The spacing of first running clearance 100 is 2.5~3.5mm, and the spacing of the first running clearance 100 takes in the present embodiment
3mm。
The spacing of second running clearance 200 is 0.6~1.5mm, and the spacing of the second running clearance 200 takes in the present embodiment
1mm。
The spacing of 3rd running clearance 300 is 0.3~0.5mm, and the spacing of the 3rd running clearance 300 takes in the present embodiment
0.5mm。
When changing bearing (upper angular contact bearing 21 or lower angular contact bearing 22), directly can first be dismantled on casing 11
Fall top chock 31 and step 41, now rotor 13 need not be extracted, and permanent magnet magnetism is influenceed in by rotor 13, rotor
It can adsorb to stator in the radial direction.Rotor outer circle to stator inner hole semidiameter (the first running clearance 100) in 3mm,
And the spacing of the second running clearance 200 only has 1mm, now casing 11 plays position-limiting action, and the upper of rotor 13 cylindrical can be attached to machine
On shell 11, under it is cylindrical can be attached on the endoporus of motor cabinet 14, without making rotor be adsorbed onto on stator inner hole, produce strong inhale
Power, it is difficult to separate.The end contact with rotor, there is an axle to rotor after bearing and bearing block are disassembled on support simultaneously
To positioning, accordingly even when disassembling bearing without extracting rotor, rotor will not also drop out in casing.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (5)
1. the rotor mounting structure in a kind of overspeed test bench main frame, including casing (11), stator (12), rotor (13) and motor
Seat (14), the motor cabinet (14) are fixed on the bottom of casing (11), and stator (12) is fixed in casing (11), and rotor (13) turns
It is dynamic to be supported in stator (12), and the first running clearance (100) is formed between rotor (13) and stator (12), it is characterised in that：
Also include upper angular contact bearing (21), lower angular contact bearing (22), top chock (31), axle sleeve ring (34), step (41)
(44) are covered with shaft end, the step (41) is fixed on motor cabinet (14), top chock (31) and step (41) point
The top of casing (11) and the bottom of motor cabinet (14) are not fixedly connected on, and the upper end of rotor (13) passes through the upper of casing (11)
End, lower end passes through motor cabinet (14), and the both ends of rotor (13) correspond to stretch in top chock (31) and step (41) respectively
It is interior, formed with the second running clearance (200) between the upper end of rotor (13) and casing (11), rotor (13) and motor cabinet (14) it
Between formed with the 3rd running clearance (300), the spacing of the first running clearance (100) is more than the spacing of the second running clearance (200),
The spacing of second running clearance (200) is more than the spacing of the 3rd running clearance (300)；Upper angular contact bearing (21) is placed in upper bearing (metal)
In seat (31), axle sleeve ring (34) is sheathed on rotor (13), and is interference fitted between axle sleeve ring (34) and rotor (13), axle sleeve ring
(34) one end is connected on the inner ring of angular contact bearing (21)；The lower angular contact bearing (22) is placed in step (41)
Interior, shaft end set (44) is fixedly connected on the bottom of rotor (13), and the running-on of shaft end set (44) contacts at lower angular contact bearing
(22) on inner ring.
2. the rotor mounting structure in overspeed test bench main frame as claimed in claim 1, it is characterised in that：Described first rotates
The spacing in gap (100) is 2.5~3.5mm.
3. the rotor mounting structure in overspeed test bench main frame as claimed in claim 1, it is characterised in that：Described second rotates
The spacing in gap (200) is 0.6~1.5mm.
4. the rotor mounting structure in overspeed test bench main frame as claimed in claim 1, it is characterised in that：Described 3rd rotates
The spacing in gap (300) is 0.3~0.5mm.
5. the rotor mounting structure in overspeed test bench main frame as claimed in claim 1, it is characterised in that：The top chock
(31) first boss portion (311) are provided with, the upper positioning being adapted with the first boss portion (311) is provided with casing (11)
Stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711034616.0A CN107643174A (en) | 2017-10-30 | 2017-10-30 | A kind of rotor mounting structure in overspeed test bench main frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711034616.0A CN107643174A (en) | 2017-10-30 | 2017-10-30 | A kind of rotor mounting structure in overspeed test bench main frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107643174A true CN107643174A (en) | 2018-01-30 |
Family
ID=61124563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711034616.0A Pending CN107643174A (en) | 2017-10-30 | 2017-10-30 | A kind of rotor mounting structure in overspeed test bench main frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107643174A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788086U (en) * | 2009-12-31 | 2011-04-06 | 南京磁谷科技有限公司 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
| CN202149049U (en) * | 2011-07-29 | 2012-02-22 | 梁文广 | Axial flow fan in novel structure |
| CN202475548U (en) * | 2011-12-20 | 2012-10-03 | 南京硕航机电有限公司 | Mobile phone test rotary table |
| CN103912589A (en) * | 2014-03-25 | 2014-07-09 | 南京航空航天大学 | Centripetal thrust protection bearing device for automatically eliminating clearance |
| CN106385124A (en) * | 2016-11-21 | 2017-02-08 | 南京磁谷科技有限公司 | Magnetic suspension centrifugal type blower structure |
| US20170292524A1 (en) * | 2016-04-11 | 2017-10-12 | Borgwarner Inc. | Method for securing stator in high speed electric motors |
| CN207423512U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of rotor mounting structure in overspeed test bench host |
-
2017
- 2017-10-30 CN CN201711034616.0A patent/CN107643174A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788086U (en) * | 2009-12-31 | 2011-04-06 | 南京磁谷科技有限公司 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
| CN202149049U (en) * | 2011-07-29 | 2012-02-22 | 梁文广 | Axial flow fan in novel structure |
| CN202475548U (en) * | 2011-12-20 | 2012-10-03 | 南京硕航机电有限公司 | Mobile phone test rotary table |
| CN103912589A (en) * | 2014-03-25 | 2014-07-09 | 南京航空航天大学 | Centripetal thrust protection bearing device for automatically eliminating clearance |
| US20170292524A1 (en) * | 2016-04-11 | 2017-10-12 | Borgwarner Inc. | Method for securing stator in high speed electric motors |
| CN106385124A (en) * | 2016-11-21 | 2017-02-08 | 南京磁谷科技有限公司 | Magnetic suspension centrifugal type blower structure |
| CN207423512U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of rotor mounting structure in overspeed test bench host |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180130 |
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| RJ01 | Rejection of invention patent application after publication |