CN210867444U - Carbon brush assembly for eliminating shaft current - Google Patents
Carbon brush assembly for eliminating shaft current Download PDFInfo
- Publication number
- CN210867444U CN210867444U CN201922277431.3U CN201922277431U CN210867444U CN 210867444 U CN210867444 U CN 210867444U CN 201922277431 U CN201922277431 U CN 201922277431U CN 210867444 U CN210867444 U CN 210867444U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- pivot
- mount pad
- mounting seat
- brush piece
- Prior art date
- 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.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a carbon brush subassembly for eliminating axle current, it includes the mount pad, an apron, carbon brush piece and spring, the mount pad is fixed in the bearing and covers outward, and be located one side of pivot, the one end cooperation pivot outer fringe of the mount pad that is close to the pivot sets up to the arc, and there is the clearance between the pivot, the apron is fixed in the one end of keeping away from the pivot of mount pad, the mount pad paste radially set up flutedly along the pivot in the one side of bearing enclosing cover, thereby enclose and place the chamber, carbon brush piece and spring set up in placing the chamber, carbon brush piece floats and pastes and lean on in the pivot, the spring clamp is located between carbon brush piece and the apron. Above-mentioned carbon brush subassembly adds the axle head at ordinary motor, eliminates its axle electric current through extra carbon brush piece contact pivot surface, and the installation is simple and convenient, stable in structure, and functional strong is different from the insulation isolation mode to eliminate the axle electric current fundamentally, solved the erosion problem that the axle electric current brought, and need not frequent maintenance.
Description
Technical Field
The utility model relates to a motor stator makes the field, especially relates to a carbon brush subassembly for eliminating axle electric current.
Background
When the variable frequency motor operates, the potential difference generated between two ends of the bearing is called as shaft voltage, and the voltage is added in a loop formed by a motor rotating shaft, the bearing, an end cover and a machine base, so that shaft current is generated, the shaft current can generate electric corrosion on the bearing, the service life of the bearing is influenced, and the safe operation of a unit is influenced.
The conventional method for solving the problem is to add an insulating material between a bearing seat and a motor shell of the motor to insulate the motor shaft from the shell, so that the voltage at the two ends of the motor shaft cannot form a current loop, thereby protecting the motor bearing. The method has the disadvantages of high insulation cost, strict installation requirements, frequent maintenance of the insulation layer and large workload.
SUMMERY OF THE UTILITY MODEL
Based on above, an object of the utility model is to provide a carbon brush subassembly for eliminating axle electric current, effective, durable to guarantee that the motor bearing does not receive the erosion of axle electric current.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a carbon brush subassembly for eliminating axle electric current, which comprises a mounting bas, a cover plate, carbon brush piece and spring, the mount pad is fixed in on the bearing enclosing cover, and be located one side of pivot, the one end cooperation pivot outer fringe of the mount pad that is close to the pivot sets up to the arc, and there is the clearance between the pivot, the apron is fixed in the one end of keeping away from the pivot of mount pad, the mount pad paste and radially seted up the recess along the pivot in the one side of bearing enclosing cover, thereby enclose and place the chamber, carbon brush piece and spring set up in placing the chamber, carbon brush piece floats and pastes and lean on in the pivot, the spring clamp is located between carbon brush piece.
The mounting seat is provided with a plurality of fixing holes along the axial direction of the rotating shaft, each fixing hole is positioned on two sides of the groove, and the mounting seat is fixedly connected with the outer bearing cover by penetrating through the fixing holes through bolts.
The cover plate is provided with a through hole leading to the end face of the mounting seat, the end face of the mounting seat is provided with a threaded hole corresponding to the through hole, and the cover plate is fixedly connected with the mounting seat through a bolt penetrating through the threaded hole.
The end face, close to the mounting seat, of the cover plate is provided with a protruding block, and the protruding block is inserted into the groove to form positioning.
Wherein, the projection is provided with a through hole for leading out the carbon brush block lead.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, a shaft end at ordinary motor is add to the carbon brush subassembly for eliminating axle current, through its axle current of extra carbon brush piece contact pivot surface elimination, and the installation is simple and convenient, and stable in structure, functional strong is different from the insulating mode of keeping apart to eliminate axle current at all, solved the erosion problem that axle current brought, and need not frequent maintenance.
Drawings
Fig. 1 is a schematic structural diagram of a carbon brush assembly for eliminating shaft current according to an embodiment of the present invention;
fig. 2 is a front view of a recess of a mounting seat of a carbon brush assembly for eliminating shaft current according to an embodiment of the present invention;
fig. 3 is an end elevation view of a mounting seat of a carbon brush assembly for eliminating shaft current according to an embodiment of the present invention;
fig. 4 is an end view of a cover plate of a carbon brush assembly for eliminating shaft current according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 4, the embodiment provides a carbon brush assembly for eliminating shaft current, which includes a mounting base 1, a cover plate 2, a carbon brush block 3 and a spring 4.
The mounting seat 1 is fixed on the bearing outer cover 5 and is located on one side of the rotating shaft 6, one end of the mounting seat 1, close to the rotating shaft 6, is matched with the outer edge of the rotating shaft 6 to form an arc shape, and a gap exists between the mounting seat 1 and the rotating shaft 6.
The one side that leans on bearing enclosing cover 5 of mount pad 1 is along 6 radial setups in recesses 7 of pivot to enclose and become to place the chamber, carbon brush piece 3 and spring 4 set up in placing the chamber, and carbon brush piece 3 floats and leans on pivot 6, and spring 4 presss from both sides and locates between carbon brush piece 3 and apron 2.
Be provided with on mount pad 1 and seted up a plurality of fixed orificess 8 along 6 axial of pivot, each fixed orifices 8 is located the both sides of recess 7, passes fixed orifices 8 through the bolt and links firmly mount pad 1 and bearing enclosing cover 5.
The cover plate 2 is fixed at one end, far away from the rotating shaft 6, of the mounting seat 1, a through hole 9 leading to the end face of the mounting seat 1 is formed in the cover plate 2, a threaded hole 10 is formed in the end face of the mounting seat 1 corresponding to the through hole 9, and the cover plate 2 is fixedly connected with the mounting seat 1 through the threaded hole 10 after a bolt penetrates through the threaded hole.
In order to improve the assembly performance, a lug 11 is arranged on the end face, close to the mounting seat 1, of the cover plate 2, the lug 11 is inserted into the groove 7 to form positioning, and a through hole 12 for leading out a lead of the carbon brush block 3 is formed in the lug 11.
When the motor runs, the carbon brush block 3 is contacted with the surface of the rotating shaft 6 to eliminate shaft current.
To sum up, this a carbon brush subassembly for eliminating axle electric current adds the axle head at ordinary motor, eliminates its axle electric current through extra carbon brush piece contact pivot surface, and the installation is simple and convenient, stable in structure, and the functionality is strong, is different from the insulation isolation mode to eliminate the axle electric current fundamentally, solved the erosion problem that the axle electric current brought, and need not frequent maintenance.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a carbon brush subassembly for eliminating axle current, a serial communication port, includes mount pad, apron, carbon brush piece and spring, the mount pad is fixed in and covers outward, and is located one side of pivot, the one end cooperation pivot outer fringe of being close to the pivot of mount pad sets up to the arc, and has the clearance with the pivot within a definite time, the apron is fixed in the one end of keeping away from the pivot of mount pad, the mount pad paste and radially seted up the recess along the pivot in the one side of bearing enclosing cover to enclose and place the chamber, carbon brush piece with the spring set up in place in the chamber, carbon brush piece floats and pastes and lean on in the pivot, the spring clamp is located carbon brush piece with between the apron.
2. The carbon brush assembly for dissipating shaft current according to claim 1, wherein: the mounting seat is provided with a plurality of fixing holes which are axially formed along the rotating shaft, each fixing hole is positioned on two sides of the groove, and the mounting seat is fixedly connected with the outer bearing cover by penetrating through the fixing holes through bolts.
3. The carbon brush assembly for dissipating shaft current according to claim 1, wherein: the cover plate is provided with a through hole leading to the end face of the mounting seat, a threaded hole is formed in the end face of the mounting seat corresponding to the through hole, and the cover plate is fixedly connected with the mounting seat by penetrating through the threaded hole through a bolt.
4. The carbon brush assembly for dissipating shaft current according to claim 1, wherein: and a convex block is arranged on the end face, close to the mounting seat, of the cover plate and is inserted into the groove to form positioning.
5. The carbon brush assembly for dissipating shaft current according to claim 4, wherein: and the projection is provided with a through hole for guiding out the carbon brush block lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277431.3U CN210867444U (en) | 2019-12-17 | 2019-12-17 | Carbon brush assembly for eliminating shaft current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277431.3U CN210867444U (en) | 2019-12-17 | 2019-12-17 | Carbon brush assembly for eliminating shaft current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210867444U true CN210867444U (en) | 2020-06-26 |
Family
ID=71291388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922277431.3U Expired - Fee Related CN210867444U (en) | 2019-12-17 | 2019-12-17 | Carbon brush assembly for eliminating shaft current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210867444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949218A (en) * | 2021-09-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Cover plate structure with shaft current protection function |
-
2019
- 2019-12-17 CN CN201922277431.3U patent/CN210867444U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949218A (en) * | 2021-09-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Cover plate structure with shaft current protection function |
| CN113949218B (en) * | 2021-09-15 | 2024-02-20 | 浙江中车尚驰电气有限公司 | Cover plate structure with shaft current protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 |