CN203491852U - Shaft grounding device - Google Patents
Shaft grounding device Download PDFInfo
- Publication number
- CN203491852U CN203491852U CN201320582202.2U CN201320582202U CN203491852U CN 203491852 U CN203491852 U CN 203491852U CN 201320582202 U CN201320582202 U CN 201320582202U CN 203491852 U CN203491852 U CN 203491852U
- Authority
- CN
- China
- Prior art keywords
- elastic spring
- brush piece
- axle
- coupling
- supporting member
- 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 - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 39
- 238000010168 coupling process Methods 0.000 claims description 39
- 238000005859 coupling reaction Methods 0.000 claims description 39
- 238000005201 scrubbing Methods 0.000 claims description 39
- 238000005452 bending Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 abstract description 5
- 230000009931 harmful effect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- -1 steam Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides an axle earthing device, brush piece elastic reed supporting component including elastic reed and axle earthing brush block component, the elastic reed is along the crooked back of axial surface, and both ends are fixed on the bearing structure of axle both sides, utilize the crooked pressure that produces of elastic reed will axle earthing brush block is pressed in epaxially, axle earthing brush block is connected to on the frame through ground lead. The utility model provides a pair of axle earthing device can eliminate the harmful effects of axle electric current to the bearing to avoid among the prior art brush piece to be held by the brush and embrace and cause the contact failure of brush piece and pivot.
Description
Technical field
The utility model relates to mechanical & electrical technology field, particularly a kind of shaft grounding device.
Background technology
In the motor of larger capacity, for preventing the injury of shaft current to motor bearings, except adopting insulation bearing structure, also must adopt the motor shaft earthing device being installed on motor, the shaft current that machine shaft is produced because of uneven electromotive force is introduced in support, traditional shaft grounding device generally comprises brush carrier, brush piece, compression spring, brush holder support and lead wire etc., and brush piece is placed in brush carrier, the outer exclusion seal device that do not add of device.Under the effect of compression spring, there is the brush piece of excellent conductive performance and the motor shaft CONTACT WITH FRICTION of rotation, and by the lead wire of brush piece, shaft current is introduced in electric machine stand.Brushing under normal circumstances piece can freely move up and down in brush carrier, under the effect of compression spring, between brush piece and axle, can keep enough contacts.But for the motor device moving in complex environment; equipment around dust, moisture etc. is easy to cause laying dust and corrosion in brush carrier; make brush carrier that brush piece is held tightly and can not in brush carrier, be free to slide; cause the loose contact of brush piece and axle, finally because failing to realize axle ground protection, cause bearing spot corrosion to damage.
Utility model content
The purpose of this utility model is to provide a kind of shaft grounding device, eliminates the harmful effect of shaft current to bearing, and avoids brushing in prior art that piece is embraced by brush carrier and the loose contact that causes brush piece and rotating shaft.
For solving the problems of the technologies described above, the utility model provides a kind of shaft grounding device, comprise the brush piece elastic spring supporting member being formed by elastic spring and the scrubbing brush piece that is coupling, described elastic spring is after axial plane bending, two ends are fixed in the supporting construction of axle both sides, utilize the crooked pressure producing of described elastic spring will described in the scrubbing brush piece that is coupling be pressed on axle, described in the scrubbing brush piece that is coupling by ground lead, be connected on support.
Further, described brush piece elastic spring supporting member comprises brush piece elastic spring supporting member and lower brush piece elastic spring supporting member, described upper brush piece elastic spring supporting member is comprised of upper elastic spring and the scrubbing brush piece that is coupling, described lower brush piece elastic spring supporting member is comprised of lower elastic spring and the scrubbing brush piece that is coupling, described upper elastic spring and lower elastic spring are after the plane of symmetry bending of axle, two ends are fixed in the supporting construction of axle both sides, utilize the crooked pressure producing of described upper elastic spring and lower elastic spring will described in the scrubbing brush piece that is coupling be pressed on axle.
Further, the scrubbing brush piece that is coupling described in is connected on described elastic spring by welding, riveted joint or bolt.
Further, the number of scrubbing brush piece of being coupling described in is different and increase or reduce according to the diameter of described axle.
Further, the arranged outside of described brush piece elastic spring supporting member has protective cover.
The shaft grounding device that the utility model provides, adopt elastic spring that the scrubbing brush piece that is coupling being attached thereto is directly pressed on the circumference of axle, the shaft current producing on axle is introduced to electric machine stand by the ground lead being connected with the scrubbing brush piece that is coupling and import in the earth, avoided the injury of shaft current to motor bearings.Simultaneously; also avoided traditional brush carrier brush piece formula shaft grounding device; because motor device moves in complex environment; equipment around dust, moisture etc. is easy to cause laying dust and corrosion in brush carrier; make brush carrier that brush piece is held tightly and can not in brush carrier, be free to slide; cause the loose contact of brush piece and rotating shaft, finally because failing to realize axle ground protection, cause bearing spot corrosion to damage.
Accompanying drawing explanation
The structural representation of the shaft grounding device that Fig. 1 provides for the utility model embodiment.
The shaft grounding device that Fig. 2 provides for the utility model embodiment is arranged on the structural representation on motor shaft.
The shaft grounding device that Fig. 3 provides for the utility model embodiment is installed the structural representation of protective cover.
The end view of the upper and lower brush piece elastic spring supporting member of the shaft grounding device that Fig. 4 provides for the utility model embodiment.
The vertical view of the upper and lower brush piece elastic spring supporting member of the shaft grounding device that Fig. 5 provides for the utility model embodiment.
The ground lead of the shaft grounding device that Fig. 6 provides for the utility model embodiment connects the structural representation of upper and lower elastic spring.
Embodiment
A kind of shaft grounding device, comprise the brush piece elastic spring supporting member being formed by elastic spring and the scrubbing brush piece that is coupling, elastic spring is after axial plane bending, two ends are fixed in the supporting construction of axle both sides, utilize the crooked pressure producing of the elastic spring scrubbing brush piece that will be coupling to be pressed on axle, the scrubbing brush piece that is coupling is connected on support by ground lead.
Referring to Fig. 1 and Fig. 2, as preferred forms of the present utility model, a kind of shaft grounding device that the present embodiment provides, comprise brush piece elastic spring supporting member and lower brush piece elastic spring supporting member, upper brush piece elastic spring supporting member consists of with the scrubbing brush piece 2 that is coupling being connected with upper elastic spring 1 upper elastic spring 1, and lower brush piece elastic spring supporting member consists of with the scrubbing brush piece 2 that is coupling being connected with lower elastic spring 3 lower elastic spring 3.Upper elastic spring 1 and lower elastic spring 3 are respectively after the top and bottom bending of axle 5, two ends are fixed in the supporting construction 4 of axle 5 both sides, in utilization, elastic spring 1 is pressed in the scrubbing brush piece 2 that is coupling being connected with lower elastic spring 3 with upper elastic spring 1 respectively on the top and bottom of axle 5 with the crooked pressure producing of lower elastic spring 3, the supporting construction 4 of axle 5 both sides is fixed on electric motor end cap 10 by support bar 6, thereby upper brush piece elastic spring supporting member and lower brush piece elastic spring supporting member are fixed on the circumference of axle 5.The scrubbing brush piece 2 that is coupling is connected on support binding post 8 by ground lead 7, thereby shaft current is introduced to support.Certainly, as another kind execution mode preferably, upper brush piece elastic spring supporting member and lower brush piece elastic spring supporting member can be arranged at the left and right sides of axle 5, by elastic spring, the scrubbing brush piece 2 that is coupling being attached thereto are pressed in to the left and right sides of axle 5.During machine operation, be with moving axis 5 to rotate, axle 5 and scrubbing brush piece 2 sliding contacts that are coupling, the shaft current on axle 5 is introduced supports by the scrubbing brush piece 2 that is coupling by ground lead 7 and is imported in the earth, has avoided the injury of shaft current to motor bearings.
Referring to Fig. 4 and Fig. 5, upper elastic spring 1 be coupling between scrubbing brush piece 2, lower elastic spring 3 is connected be connected to welding, riveted joint or the bolt that are coupling between scrubbing brush piece 2.The diameter of the quantity basis axle 5 of the scrubbing brush piece 2 that is coupling being connected with lower elastic spring 3 from upper elastic spring 1 different and increase or reduce, as a kind of execution mode of the present embodiment, the number of the scrubbing brush piece that is coupling being connected with lower elastic spring 3 with upper elastic spring 1 is respectively three.
Referring to Fig. 3; be fixed on upper brush piece elastic spring supporting member on axle 5 circumferential surfaces and the arranged outside of lower brush piece elastic spring supporting member and have protective cover 9; can reduce dust; the material such as steam, water enters the probability of rotating shaft earthing device inside; can strengthen the protection to shaft grounding device, improve its useful life.
Referring to Fig. 6, when the scrubbing brush piece 2 that is coupling, upper elastic spring 1 and lower elastic spring 3 are metal material, and when the scrubbing brush piece 2 that is coupling adopts welding manner to be integrally formed with being connected of upper elastic spring 1 and lower resiliency supported reed 3, upper elastic spring 1 and lower elastic spring 3 can be used as a part for wire, ground lead 7 is directly connected with lower elastic spring 3 with upper elastic spring 1, shaft current on axle 5 is imported in the earth through upper elastic spring 1 and lower elastic spring 3 introducing supports by the scrubbing brush piece 2 that is coupling, avoided the injury of shaft current to motor bearings.
The action principle of the shaft grounding device that the utility model embodiment provides: during machine operation, motor shaft 5 is because uneven magnetic field produces shaft current, motor shaft 5 and scrubbing brush piece 2 sliding contacts that are coupling, shaft current is by the scrubbing brush piece 2 that is coupling, by the ground lead 7 being connected with the scrubbing brush piece 2 that is coupling, introduced in electric machine stand, or shaft current is imported in the earth by ground lead 7 introducing electric machine stands through upper elastic spring 1 and lower elastic spring 3 by the scrubbing brush piece 2 that is coupling, and has avoided shaft current through bearing and the injury that bearing is produced.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. a shaft grounding device, it is characterized in that: comprise the brush piece elastic spring supporting member being formed by elastic spring and the scrubbing brush piece that is coupling, described elastic spring is after axial plane bending, two ends are fixed in the supporting construction of axle both sides, utilize the crooked pressure producing of described elastic spring will described in the scrubbing brush piece that is coupling be pressed on axle, described in the scrubbing brush piece that is coupling by ground lead, be connected on support.
2. shaft grounding device according to claim 1, it is characterized in that: described brush piece elastic spring supporting member comprises brush piece elastic spring supporting member and lower brush piece elastic spring supporting member, described upper brush piece elastic spring supporting member is comprised of upper elastic spring and the scrubbing brush piece that is coupling, described lower brush piece elastic spring supporting member is comprised of lower elastic spring and the scrubbing brush piece that is coupling, described upper elastic spring and lower elastic spring are after the plane of symmetry bending of axle, two ends are fixed in the supporting construction of axle both sides, the scrubbing brush piece that is coupling described in the pressure general who utilizes described upper elastic spring and the bending of lower elastic spring to produce is pressed on axle.
3. shaft grounding device according to claim 2, is characterized in that: described in the scrubbing brush piece that is coupling by welding, riveted joint or bolt, be connected on described elastic spring.
4. shaft grounding device according to claim 3, is characterized in that: described in the be coupling number of scrubbing brush piece different and increase or reduce according to the diameter of described axle.
5. shaft grounding device according to claim 2, is characterized in that: the arranged outside of described brush piece elastic spring supporting member has protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582202.2U CN203491852U (en) | 2013-09-18 | 2013-09-18 | Shaft grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582202.2U CN203491852U (en) | 2013-09-18 | 2013-09-18 | Shaft grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491852U true CN203491852U (en) | 2014-03-19 |
Family
ID=50262652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582202.2U Expired - Lifetime CN203491852U (en) | 2013-09-18 | 2013-09-18 | Shaft grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058495A (en) * | 2016-08-01 | 2016-10-26 | 武汉船用机械有限责任公司 | Main shaft grounding device |
| CN110823481A (en) * | 2019-12-18 | 2020-02-21 | 江苏擎邦机械有限公司 | Air tightness detection device for rubber tube of air expansion shaft |
-
2013
- 2013-09-18 CN CN201320582202.2U patent/CN203491852U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058495A (en) * | 2016-08-01 | 2016-10-26 | 武汉船用机械有限责任公司 | Main shaft grounding device |
| CN106058495B (en) * | 2016-08-01 | 2018-06-26 | 武汉船用机械有限责任公司 | A kind of main shaft earthing or grounding means |
| CN110823481A (en) * | 2019-12-18 | 2020-02-21 | 江苏擎邦机械有限公司 | Air tightness detection device for rubber tube of air expansion shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204243685U (en) | The anti-subspan oscillation conductor spacer of a kind of damping adjusting type | |
| CN203491852U (en) | Shaft grounding device | |
| CN103051111B (en) | Sealing device of collecting ring | |
| CN204966730U (en) | Protection against electric shock all insulation ground connection protection device | |
| CN205105052U (en) | Eliminate device of motor shaft electric current | |
| CN206272044U (en) | A kind of non-maintaining slip ring of high current high power | |
| CN202889039U (en) | Structure of insulating end cover of generator | |
| CN201113157Y (en) | Rotating plug | |
| CN203300274U (en) | Anti-compression cable | |
| CN203554153U (en) | Inner grounding insulation bearing | |
| CN203278492U (en) | Motor with elastically fixed carbon brushes | |
| CN203339451U (en) | Collector brush device | |
| CN202019123U (en) | Grounding device for anti-winding electric welder | |
| CN206076880U (en) | A kind of high current isolated-phase enclosed bus | |
| CN205212133U (en) | On press formula electric installation | |
| CN203828843U (en) | Electric conduction flexible hose for dust collector | |
| CN204794260U (en) | Vertical electric automobile charging control box of disc | |
| CN204927765U (en) | Current collector | |
| CN202077260U (en) | Melamine impregnated paper conductive device | |
| CN203841646U (en) | Rotary block fixing clamp-connecting frame | |
| CN204045906U (en) | Line electric installation is run in driving | |
| CN202352983U (en) | Electrical appliance connector | |
| CN203288920U (en) | Tower-type electrically-conductive slip ring | |
| CN203485921U (en) | Grounding device | |
| CN202662953U (en) | Wire incoming and outgoing mechanism rotating circumferentially and not winding wires |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |