CN209730960U - A kind of insulation shaft for motor - Google Patents
A kind of insulation shaft for motor Download PDFInfo
- Publication number
- CN209730960U CN209730960U CN201821722826.9U CN201821722826U CN209730960U CN 209730960 U CN209730960 U CN 209730960U CN 201821722826 U CN201821722826 U CN 201821722826U CN 209730960 U CN209730960 U CN 209730960U
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- insulation
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- sleeve
- gripping block
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Abstract
The utility model relates to a kind of insulation shafts for motor, including shaft main body and ceramic insulation set, the shaft main body is by insulation sleeve construction section, guide section, locking section and bearing construction section are formed, the both ends of the insulation sleeve construction section are connected with guide section in turn respectively, locking section and bearing construction section, the ceramic insulation set is connected on insulation sleeve construction section, pilot sleeve is connected on the guide section, locking nut is connected in the locking section, the pilot sleeve is fixed on guide section by locking nut, gripping block and rubber washer are also connected on the outside of the pilot sleeve, the gripping block is connected by rubber washer with ceramic insulation set, the ceramic insulation set is fixed on insulation sleeve construction section by the gripping block of two sides.The design has the advantages that structure is simple, easily fabricated and practical and efficient.
Description
Technical field
The utility model relates to technical field of motors, are specifically related to a kind of insulation shaft for motor.
Background technique
In field of motor manufacturing, due to the distribution capacity difference etc. that electric machine iron core magnetic resistance is uneven and winding is in motor
Factor cause in iron core each position induction magnetic potential is unequal, the magnetic potential difference can be in the closed circuit between iron core, bearing, shaft
It generates zero sequence voltage component and then generates zero-sequence current component, which will will cause the galvano-cautery of motor bearings, in turn
The service life of motor is influenced, it is especially especially serious in variable-frequency motor, servo motor field generation shaft current situation.
Method that shaft current endangers bearing is solved at present mainly by following 2 kinds.1, insulation bearing, with deep groove ball bearing
For, bearing ball can be done using Ceramic Balls such as silicon nitride or zirconium oxides form hybrid ceramic insulation bearing.The insulation bearing
Cost about commonly with 5-10 times or so of model bearing, in the small-sized and following motor that infrastructure cost accounts for prime cost very
It is difficult commonly used.2, electric motor end cap bearing chamber is made into bilayer or multilayer structure by insulated end cover, between the two layers or bearing with
One layer of insulation film is pressed from both sides between bearing chamber, while respectively padding one layer of insulation film in bearing two sides.The infrastructure cost is lower, but insulate
Film is invalid vulnerable to pollution, while micro-machine is limited seriously by space, and the presence of insulation film will cause end cap
Stress is bad, and there is also the security risks such as insulation ag(e)ing.
Summary of the invention
The utility model is provided with rubber washer between gripping block and ceramic insulation set, exhausted to ceramics by rubber washer
Edge set plays the role of protection, prevents from causing it during clamping unnecessary damage, and playing increase, its is practical
The effect of performance；A kind of insulation shaft for motor is provided.
In order to solve the above technical problems, the utility model provides a kind of insulation shaft for motor, and feature exists
In: including shaft main body and ceramic insulation set, the shaft main body is by insulation sleeve construction section, guide section, locking section and axis
It holds construction section to be formed, the both ends of the insulation sleeve construction section are connected with guide section, locking section and bearing installation in turn respectively
Section, the ceramic insulation set are connected on insulation sleeve construction section, and pilot sleeve, the lock are connected on the guide section
It is connected with locking nut in tight section, the pilot sleeve is fixed on guide section by locking nut, the pilot sleeve
Outside be also connected with gripping block and rubber washer, the gripping block, which is covered by rubber washer with ceramic insulation, to be connected, described
Ceramic insulation set be fixed on insulation sleeve construction section by the gripping block of two sides.
Further, being provided with the first external connection screw to match with locking nut on the outer wall of the locking section.
Further: the second external connection screw is provided on the outer wall of the pilot sleeve, the gripping block is in annulus
Shape is provided with the inscribed screw thread to match with the second external connection screw on the inner wall of the gripping block, and the gripping block passes through
The mating connection of inscribed screw thread and the second external connection screw is on pilot sleeve.
Further: being additionally provided with rubber retainer ring between the insulation sleeve construction section and ceramic insulation set, described is exhausted
The mounting groove for installing rubber retainer ring is provided on the outer wall at edge set construction section both ends, the ceramic insulation covers the interior of both ends
The card slot to match with rubber retainer ring is provided on wall.
After adopting the above structure, the utility model is provided with rubber washer between gripping block and ceramic insulation set, passes through
Rubber washer plays the role of protection to ceramic insulation set, prevents from causing it during clamping unnecessary damage,
Play the role of increasing the practicality energy；And the design also has the advantages that structure is simple, easily fabricated and practical and efficient.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of shaft main body.
Specific embodiment
A kind of insulation shaft for motor as depicted in figs. 1 and 2, including shaft main body 1 and ceramic insulation set 2, institute
The shaft main body 1 stated is made of insulation sleeve construction section 1-1, guide section 1-2, locking section 1-3 and bearing construction section 1-4, institute
The both ends of the insulation sleeve construction section 1-1 stated are connected with guide section 1-2, locking section 1-3 and bearing construction section 1-4, institute in turn respectively
The ceramic insulation set 2 stated is connected on insulation sleeve construction section 1-1, and pilot sleeve 4 is connected on the guide section 1-2, described
Locking section 1-3 on be connected with locking nut 5, the pilot sleeve 4 is fixed on guide section 1-2 by locking nut 5, institute
The outside for the pilot sleeve 4 stated is also connected with gripping block 7 and rubber washer 6, and the gripping block 7 passes through rubber washer 6 and pottery
Porcelain insulation sleeve 2 is connected, and the ceramic insulation set 2 is fixed on insulation sleeve construction section 1-1 by the gripping block 7 of two sides.This reality
It is provided with rubber washer between gripping block and ceramic insulation set with novel, guarantor is played to ceramic insulation set by rubber washer
The effect of shield prevents from causing it during clamping unnecessary damage, plays the role of increasing the practicality energy
The first external connection screw to match with locking nut 5 is provided on the outer wall of locking section 1-3 as shown in Figure 1.
The second external connection screw is provided on the outer wall of pilot sleeve 4 as shown in Figure 1, the gripping block 7 is annular in shape,
The inscribed screw thread to match with the second external connection screw is provided on the inner wall of the gripping block 7, the gripping block 7 passes through interior
The mating connection of screw thread and the second external connection screw is connect on pilot sleeve 4.
It is additionally provided with rubber retainer ring 3 between insulation sleeve construction section 1-1 as shown in Figure 1 and ceramic insulation set 2, described is exhausted
The mounting groove for installing rubber retainer ring 3 is provided on the outer wall at the edge set both ends construction section 1-1, the ceramic insulation covers 2 liang
The card slot to match with rubber retainer ring 3 is provided on the inner wall at end.The design has structure simple, easily fabricated and practical and efficient
The advantages of.
Claims (4)
1. a kind of insulation shaft for motor, it is characterised in that: including shaft main body and ceramic insulation set, the shaft master
Body is made of insulation sleeve construction section, guide section, locking section and bearing construction section, the both ends point of the insulation sleeve construction section
It is not connected with guide section, locking section and bearing construction section in turn, the ceramic insulation set is connected on insulation sleeve construction section, institute
It is connected with pilot sleeve on the guide section stated, locking nut is connected in the locking section, the pilot sleeve passes through lock
Tight nut is fixed on guide section, and gripping block and rubber washer, the clamping are also connected on the outside of the pilot sleeve
Block is connected by rubber washer with ceramic insulation set, and the ceramic insulation set is fixed on insulation sleeve peace by the gripping block of two sides
It fills in section.
2. a kind of insulation shaft for motor according to claim 1, it is characterised in that: the outer wall of the locking section
On be provided with the first external connection screw to match with locking nut.
3. a kind of insulation shaft for motor according to claim 1, it is characterised in that: outside the pilot sleeve
The second external connection screw is provided on wall, the gripping block is annular in shape, is provided on the inner wall of the gripping block and second
The inscribed screw thread that external connection screw matches, the gripping block are being led by the way that the mating connection of screw thread and the second external connection screw is inscribed
To on sleeve.
4. a kind of insulation shaft for motor according to claim 1, it is characterised in that: the insulation sleeve construction section
It is additionally provided with rubber retainer ring between ceramic insulation set, is provided on the outer wall at the insulation sleeve construction section both ends for installing
The mounting groove of rubber retainer ring is provided with the card slot to match with rubber retainer ring on the inner wall at described ceramic insulation set both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821722826.9U CN209730960U (en) | 2018-10-23 | 2018-10-23 | A kind of insulation shaft for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821722826.9U CN209730960U (en) | 2018-10-23 | 2018-10-23 | A kind of insulation shaft for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209730960U true CN209730960U (en) | 2019-12-03 |
Family
ID=68672443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821722826.9U Active CN209730960U (en) | 2018-10-23 | 2018-10-23 | A kind of insulation shaft for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209730960U (en) |
-
2018
- 2018-10-23 CN CN201821722826.9U patent/CN209730960U/en active Active
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